1057207215 has 16 divisors (see below), whose sum is σ = 1780560000. Its totient is φ = 534167712.

The previous prime is 1057207199. The next prime is 1057207273. The reversal of 1057207215 is 5127027501.

It is not a de Polignac number, because 1057207215 - 2⁴ = 1057207199 is a prime.

It is a super-2 number, since 2×1057207215² = 2235374190896112450, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 1854465 + ... + 1855034.

It is an arithmetic number, because the mean of its divisors is an integer number (111285000).

Almost surely, 2^1057207215 is an apocalyptic number.

1057207215 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1057207215 is a deficient number, since it is larger than the sum of its proper divisors (723352785).

1057207215 is a wasteful number, since it uses less digits than its factorization.

1057207215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3709526.

The product of its (nonzero) digits is 4900, while the sum is 30.

The square root of 1057207215 is about 32514.7230497201. The cubic root of 1057207215 is about 1018.7165759167.

The spelling of 1057207215 in words is "one billion, fifty-seven million, two hundred seven thousand, two hundred fifteen".