1374365557 has 2 divisors, whose sum is σ = 1374365558. Its totient is φ = 1374365556.

The previous prime is 1374365539. The next prime is 1374365567. The reversal of 1374365557 is 7555634731.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1013403556 + 360962001 = 31834^2 + 18999^2 .

It is a cyclic number.

It is not a de Polignac number, because 1374365557 - 2⁷ = 1374365429 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1374365537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 687182778 + 687182779.

It is an arithmetic number, because the mean of its divisors is an integer number (687182779).

Almost surely, 2^1374365557 is an apocalyptic number.

It is an amenable number.

1374365557 is a deficient number, since it is larger than the sum of its proper divisors (1).

1374365557 is an equidigital number, since it uses as much as digits as its factorization.

1374365557 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1323000, while the sum is 46.

The square root of 1374365557 is about 37072.4366207564. The cubic root of 1374365557 is about 1111.8189900516.

The spelling of 1374365557 in words is "one billion, three hundred seventy-four million, three hundred sixty-five thousand, five hundred fifty-seven".