1055015140 has 12 divisors (see below), whose sum is σ = 2215531836. Its totient is φ = 422006048.

The previous prime is 1055015131. The next prime is 1055015141. The reversal of 1055015140 is 415105501.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 469762276 + 585252864 = 21674^2 + 24192^2 .

It is a super-2 number, since 2×1055015140² = 2226113891258439200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1055015141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26375359 + ... + 26375398.

It is an arithmetic number, because the mean of its divisors is an integer number (184627653).

Almost surely, 2^1055015140 is an apocalyptic number.

1055015140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1055015140 is an abundant number, since it is smaller than the sum of its proper divisors (1160516696).

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

1055015140 is a wasteful number, since it uses less digits than its factorization.

1055015140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52750766 (or 52750764 counting only the distinct ones).

The product of its (nonzero) digits is 500, while the sum is 22.

The square root of 1055015140 is about 32480.9965980110. The cubic root of 1055015140 is about 1018.0119999666.

The spelling of 1055015140 in words is "one billion, fifty-five million, fifteen thousand, one hundred forty".