1051305140 has 48 divisors (see below), whose sum is σ = 2243808000. Its totient is φ = 413692032.

The previous prime is 1051305133. The next prime is 1051305163. The reversal of 1051305140 is 415031501.

It is a super-2 number, since 2×1051305140² = 2210484994780839200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 499811 + ... + 501909.

It is an arithmetic number, because the mean of its divisors is an integer number (46746000).

Almost surely, 2^1051305140 is an apocalyptic number.

1051305140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1051305140 is an abundant number, since it is smaller than the sum of its proper divisors (1192502860).

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

1051305140 is a wasteful number, since it uses less digits than its factorization.

1051305140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2504 (or 2502 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 1051305140 is about 32423.8359852748. The cubic root of 1051305140 is about 1016.8173061149.

Adding to 1051305140 its reverse (415031501), we get a palindrome (1466336641).

The spelling of 1051305140 in words is "one billion, fifty-one million, three hundred five thousand, one hundred forty".