1057180639 has 8 divisors (see below), whose sum is σ = 1073299968. Its totient is φ = 1041183360.

The previous prime is 1057180627. The next prime is 1057180643. The reversal of 1057180639 is 9360817501.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1057180639 - 2⁷ = 1057180511 is a prime.

It is a super-2 number, since 2×1057180639² = 2235261806952896642, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1057180669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12982 + ... + 47779.

It is an arithmetic number, because the mean of its divisors is an integer number (134162496).

Almost surely, 2^1057180639 is an apocalyptic number.

1057180639 is a deficient number, since it is larger than the sum of its proper divisors (16119329).

1057180639 is a wasteful number, since it uses less digits than its factorization.

1057180639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61025.

The product of its (nonzero) digits is 45360, while the sum is 40.

The square root of 1057180639 is about 32514.3143707506. The cubic root of 1057180639 is about 1018.7080397035.

The spelling of 1057180639 in words is "one billion, fifty-seven million, one hundred eighty thousand, six hundred thirty-nine".