1057439173 has 8 divisors (see below), whose sum is σ = 1223062848. Its totient is φ = 895455744.

The previous prime is 1057439161. The next prime is 1057439203. The reversal of 1057439173 is 3719347501.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1057439173 is a prime.

It is a super-2 number, since 2×1057439173² = 2236355209189847858, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1057439153) 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, 909436 + ... + 910597.

It is an arithmetic number, because the mean of its divisors is an integer number (152882856).

Almost surely, 2^1057439173 is an apocalyptic number.

It is an amenable number.

1057439173 is a deficient number, since it is larger than the sum of its proper divisors (165623675).

1057439173 is an equidigital number, since it uses as much as digits as its factorization.

1057439173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1820123.

The product of its (nonzero) digits is 79380, while the sum is 40.

The square root of 1057439173 is about 32518.2898228059. The cubic root of 1057439173 is about 1018.7910747713.

The spelling of 1057439173 in words is "one billion, fifty-seven million, four hundred thirty-nine thousand, one hundred seventy-three".