361557113 has 2 divisors, whose sum is σ = 361557114. Its totient is φ = 361557112.

The previous prime is 361557103. The next prime is 361557143. The reversal of 361557113 is 311755163.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 318693904 + 42863209 = 17852^2 + 6547^2 .

It is a cyclic number.

It is not a de Polignac number, because 361557113 - 2¹⁶ = 361491577 is a prime.

It is equal to p_19390127 and since 361557113 and 19390127 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 361557113.

It is not a weakly prime, because it can be changed into another prime (361557103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 180778556 + 180778557.

It is an arithmetic number, because the mean of its divisors is an integer number (180778557).

Almost surely, 2^361557113 is an apocalyptic number.

It is an amenable number.

361557113 is a deficient number, since it is larger than the sum of its proper divisors (1).

361557113 is an equidigital number, since it uses as much as digits as its factorization.

361557113 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9450, while the sum is 32.

The square root of 361557113 is about 19014.6552164377. The cubic root of 361557113 is about 712.4028310292.

The spelling of 361557113 in words is "three hundred sixty-one million, five hundred fifty-seven thousand, one hundred thirteen".