1055512140 has 24 divisors (see below), whose sum is σ = 2955434160. Its totient is φ = 281469888.

The previous prime is 1055512121. The next prime is 1055512141. The reversal of 1055512140 is 412155501.

It is a super-2 number, since 2×1055512140² = 2228211755374759200, 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 1055512140.

It is not an unprimeable number, because it can be changed into a prime (1055512141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8795875 + ... + 8795994.

It is an arithmetic number, because the mean of its divisors is an integer number (123143090).

Almost surely, 2^1055512140 is an apocalyptic number.

1055512140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1055512140 is an abundant number, since it is smaller than the sum of its proper divisors (1899922020).

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

1055512140 is a wasteful number, since it uses less digits than its factorization.

1055512140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17591881 (or 17591879 counting only the distinct ones).

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

The square root of 1055512140 is about 32488.6463245239. The cubic root of 1055512140 is about 1018.1718310177.

Adding to 1055512140 its reverse (412155501), we get a palindrome (1467667641).

The spelling of 1055512140 in words is "one billion, fifty-five million, five hundred twelve thousand, one hundred forty".