13370557 has 2 divisors, whose sum is σ = 13370558. Its totient is φ = 13370556.

The previous prime is 13370503. The next prime is 13370569. The reversal of 13370557 is 75507331.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12068676 + 1301881 = 3474^2 + 1141^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13370557 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13377557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6685278 + 6685279.

It is an arithmetic number, because the mean of its divisors is an integer number (6685279).

Almost surely, 2^13370557 is an apocalyptic number.

It is an amenable number.

13370557 is a deficient number, since it is larger than the sum of its proper divisors (1).

13370557 is an equidigital number, since it uses as much as digits as its factorization.

13370557 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11025, while the sum is 31.

The square root of 13370557 is about 3656.5772246734. The cubic root of 13370557 is about 237.3466829503.

Adding to 13370557 its reverse (75507331), we get a palindrome (88877888).

The spelling of 13370557 in words is "thirteen million, three hundred seventy thousand, five hundred fifty-seven".