1057135478 has 32 divisors (see below), whose sum is σ = 1858982400. Its totient is φ = 441423360.

The previous prime is 1057135477. The next prime is 1057135489. The reversal of 1057135478 is 8745317501.

It is a happy number.

It is a super-2 number, since 2×1057135478² = 2235070837692576968, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1057135477) by changing a digit.

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, 268343 + ... + 272253.

It is an arithmetic number, because the mean of its divisors is an integer number (58093200).

Almost surely, 2^1057135478 is an apocalyptic number.

1057135478 is a deficient number, since it is larger than the sum of its proper divisors (801846922).

1057135478 is a wasteful number, since it uses less digits than its factorization.

1057135478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4412.

The product of its (nonzero) digits is 117600, while the sum is 41.

The square root of 1057135478 is about 32513.6198845961. The cubic root of 1057135478 is about 1018.6935336588.

The spelling of 1057135478 in words is "one billion, fifty-seven million, one hundred thirty-five thousand, four hundred seventy-eight".