1357178164 has 18 divisors (see below), whose sum is σ = 2386684482. Its totient is φ = 675284400.

The previous prime is 1357178159. The next prime is 1357178191. The reversal of 1357178164 is 4618717531.

It can be written as a sum of positive squares in only one way, i.e., 1317109264 + 40068900 = 36292^2 + 6330^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1357178164.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 174274 + ... + 181894.

Almost surely, 2^1357178164 is an apocalyptic number.

It is an amenable number.

1357178164 is a deficient number, since it is larger than the sum of its proper divisors (1029506318).

1357178164 is an equidigital number, since it uses as much as digits as its factorization.

1357178164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8047 (or 7834 counting only the distinct ones).

The product of its digits is 141120, while the sum is 43.

The square root of 1357178164 is about 36839.8990769519. The cubic root of 1357178164 is about 1107.1648459055.

The spelling of 1357178164 in words is "one billion, three hundred fifty-seven million, one hundred seventy-eight thousand, one hundred sixty-four".