1357045031 has 4 divisors (see below), whose sum is σ = 1357261152. Its totient is φ = 1356828912.

The previous prime is 1357045007. The next prime is 1357045051. The reversal of 1357045031 is 1305407531.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1357045031 - 2²² = 1352850727 is a prime.

It is a super-2 number, since 2×1357045031² = 3683142432323581922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1357044985 and 1357045003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1357045051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 98351 + ... + 111296.

It is an arithmetic number, because the mean of its divisors is an integer number (339315288).

Almost surely, 2^1357045031 is an apocalyptic number.

1357045031 is a deficient number, since it is larger than the sum of its proper divisors (216121).

1357045031 is an equidigital number, since it uses as much as digits as its factorization.

1357045031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216120.

The product of its (nonzero) digits is 6300, while the sum is 29.

The square root of 1357045031 is about 36838.0921194353. The cubic root of 1357045031 is about 1107.1286421111.

The spelling of 1357045031 in words is "one billion, three hundred fifty-seven million, forty-five thousand, thirty-one".