1357137645 has 16 divisors (see below), whose sum is σ = 2172793920. Its totient is φ = 723348864.

The previous prime is 1357137631. The next prime is 1357137667. The reversal of 1357137645 is 5467317531.

It is not a de Polignac number, because 1357137645 - 2⁴ = 1357137629 is a prime.

It is a super-3 number, since 3×1357137645³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 1357137597 and 1357137606.

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, 3400 + ... + 52209.

It is an arithmetic number, because the mean of its divisors is an integer number (135799620).

Almost surely, 2^1357137645 is an apocalyptic number.

1357137645 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1357137645 is a deficient number, since it is larger than the sum of its proper divisors (815656275).

1357137645 is a wasteful number, since it uses less digits than its factorization.

1357137645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57244.

The product of its digits is 264600, while the sum is 42.

The square root of 1357137645 is about 36839.3491392017. The cubic root of 1357137645 is about 1107.1538275391.

The spelling of 1357137645 in words is "one billion, three hundred fifty-seven million, one hundred thirty-seven thousand, six hundred forty-five".