1054542140 has 48 divisors (see below), whose sum is σ = 2286101664. Its totient is φ = 408345600.

The previous prime is 1054542131. The next prime is 1054542169. The reversal of 1054542140 is 412454501.

It is a super-2 number, since 2×1054542140² = 2224118250071559200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 102512 + ... + 112328.

It is an arithmetic number, because the mean of its divisors is an integer number (47627118).

Almost surely, 2^1054542140 is an apocalyptic number.

1054542140 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 1054542140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1143050832).

1054542140 is an abundant number, since it is smaller than the sum of its proper divisors (1231559524).

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

1054542140 is a wasteful number, since it uses less digits than its factorization.

1054542140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9998 (or 9996 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 26.

The square root of 1054542140 is about 32473.7146011971. The cubic root of 1054542140 is about 1017.8598404900.

Adding to 1054542140 its reverse (412454501), we get a palindrome (1466996641).

The spelling of 1054542140 in words is "one billion, fifty-four million, five hundred forty-two thousand, one hundred forty".