555137161 has 2 divisors, whose sum is σ = 555137162. Its totient is φ = 555137160.

The previous prime is 555137153. The next prime is 555137173. The reversal of 555137161 is 161731555.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 448634761 + 106502400 = 21181^2 + 10320^2 .

It is a cyclic number.

It is not a de Polignac number, because 555137161 - 2³ = 555137153 is a prime.

It is not a weakly prime, because it can be changed into another prime (555137101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 277568580 + 277568581.

It is an arithmetic number, because the mean of its divisors is an integer number (277568581).

Almost surely, 2^555137161 is an apocalyptic number.

It is an amenable number.

555137161 is a deficient number, since it is larger than the sum of its proper divisors (1).

555137161 is an equidigital number, since it uses as much as digits as its factorization.

555137161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15750, while the sum is 34.

The square root of 555137161 is about 23561.3488790434. The cubic root of 555137161 is about 821.8642696744.

The spelling of 555137161 in words is "five hundred fifty-five million, one hundred thirty-seven thousand, one hundred sixty-one".