1057491735 has 16 divisors (see below), whose sum is σ = 1695851520. Its totient is φ = 562707360.

The previous prime is 1057491719. The next prime is 1057491739. The reversal of 1057491735 is 5371947501.

It is not a de Polignac number, because 1057491735 - 2⁴ = 1057491719 is a prime.

It is a super-2 number, since 2×1057491735² = 2236577539186620450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1057491739) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73711 + ... + 86880.

It is an arithmetic number, because the mean of its divisors is an integer number (105990720).

Almost surely, 2^1057491735 is an apocalyptic number.

1057491735 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1057491735 is a deficient number, since it is larger than the sum of its proper divisors (638359785).

1057491735 is a wasteful number, since it uses less digits than its factorization.

1057491735 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161038.

The product of its (nonzero) digits is 132300, while the sum is 42.

The square root of 1057491735 is about 32519.0980040960. The cubic root of 1057491735 is about 1018.8079547995.

The spelling of 1057491735 in words is "one billion, fifty-seven million, four hundred ninety-one thousand, seven hundred thirty-five".