1357145815 has 16 divisors (see below), whose sum is σ = 1636843392. Its totient is φ = 1080221184.

The previous prime is 1357145771. The next prime is 1357145827. The reversal of 1357145815 is 5185417531.

It is a cyclic number.

It is not a de Polignac number, because 1357145815 - 2⁷ = 1357145687 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1388607 + ... + 1389583.

It is an arithmetic number, because the mean of its divisors is an integer number (102302712).

Almost surely, 2^1357145815 is an apocalyptic number.

1357145815 is a deficient number, since it is larger than the sum of its proper divisors (279697577).

1357145815 is an equidigital number, since it uses as much as digits as its factorization.

1357145815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2106.

The product of its digits is 84000, while the sum is 40.

The square root of 1357145815 is about 36839.4600259016. The cubic root of 1357145815 is about 1107.1560492318.

The spelling of 1357145815 in words is "one billion, three hundred fifty-seven million, one hundred forty-five thousand, eight hundred fifteen".