361256057 has 2 divisors, whose sum is σ = 361256058. Its totient is φ = 361256056.

The previous prime is 361255957. The next prime is 361256087. The reversal of 361256057 is 750652163.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 355548736 + 5707321 = 18856^2 + 2389^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-361256057 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (361256087) 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, 180628028 + 180628029.

It is an arithmetic number, because the mean of its divisors is an integer number (180628029).

Almost surely, 2^361256057 is an apocalyptic number.

It is an amenable number.

361256057 is a deficient number, since it is larger than the sum of its proper divisors (1).

361256057 is an equidigital number, since it uses as much as digits as its factorization.

361256057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 37800, while the sum is 35.

The square root of 361256057 is about 19006.7371476537. The cubic root of 361256057 is about 712.2050451243.

The spelling of 361256057 in words is "three hundred sixty-one million, two hundred fifty-six thousand, fifty-seven".