1357520356 has 12 divisors (see below), whose sum is σ = 2376473260. Its totient is φ = 678528000.

The previous prime is 1357520309. The next prime is 1357520357. The reversal of 1357520356 is 6530257531.

It can be written as a sum of positive squares in 2 ways, for example, as 676832256 + 680688100 = 26016^2 + 26090^2 .

It is not an unprimeable number, because it can be changed into a prime (1357520357) 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, 44541 + ... + 68548.

Almost surely, 2^1357520356 is an apocalyptic number.

It is an amenable number.

1357520356 is a deficient number, since it is larger than the sum of its proper divisors (1018952904).

1357520356 is a wasteful number, since it uses less digits than its factorization.

1357520356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116094 (or 116092 counting only the distinct ones).

The product of its (nonzero) digits is 94500, while the sum is 37.

The square root of 1357520356 is about 36844.5430966378. The cubic root of 1357520356 is about 1107.2578897239.

Adding to 1357520356 its reverse (6530257531), we get a palindrome (7887777887).

The spelling of 1357520356 in words is "one billion, three hundred fifty-seven million, five hundred twenty thousand, three hundred fifty-six".