1051525140 has 192 divisors, whose sum is σ = 3220197120. Its totient is φ = 255385600.

The previous prime is 1051525061. The next prime is 1051525147. The reversal of 1051525140 is 415251501.

It is a super-2 number, since 2×1051525140² = 2211410240104039200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1051525140.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1051525147) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6078094 + ... + 6078266.

It is an arithmetic number, because the mean of its divisors is an integer number (16771860).

Almost surely, 2^1051525140 is an apocalyptic number.

1051525140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1051525140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1610098560).

1051525140 is an abundant number, since it is smaller than the sum of its proper divisors (2168671980).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1051525140 is a wasteful number, since it uses less digits than its factorization.

1051525140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 362 (or 360 counting only the distinct ones).

The product of its (nonzero) digits is 1000, while the sum is 24.

The square root of 1051525140 is about 32427.2283736985. The cubic root of 1051525140 is about 1016.8882288174. Note that the first 3 decimals are identical.

Adding to 1051525140 its reverse (415251501), we get a palindrome (1466776641).

The spelling of 1051525140 in words is "one billion, fifty-one million, five hundred twenty-five thousand, one hundred forty".