13170457 has 2 divisors, whose sum is σ = 13170458. Its totient is φ = 13170456.

The previous prime is 13170431. The next prime is 13170473. The reversal of 13170457 is 75407131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12362256 + 808201 = 3516^2 + 899^2 .

It is a cyclic number.

It is not a de Polignac number, because 13170457 - 2¹¹ = 13168409 is a prime.

It is not a weakly prime, because it can be changed into another prime (13170407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6585228 + 6585229.

It is an arithmetic number, because the mean of its divisors is an integer number (6585229).

Almost surely, 2^13170457 is an apocalyptic number.

It is an amenable number.

13170457 is a deficient number, since it is larger than the sum of its proper divisors (1).

13170457 is an equidigital number, since it uses as much as digits as its factorization.

13170457 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2940, while the sum is 28.

The square root of 13170457 is about 3629.1124259246. The cubic root of 13170457 is about 236.1567055089.

Adding to 13170457 its reverse (75407131), we get a palindrome (88577588).

The spelling of 13170457 in words is "thirteen million, one hundred seventy thousand, four hundred fifty-seven".