655068131 has 2 divisors, whose sum is σ = 655068132. Its totient is φ = 655068130.

The previous prime is 655068097. The next prime is 655068163. The reversal of 655068131 is 131860556.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 655068131 - 2⁶ = 655068067 is a prime.

It is a super-2 number, since 2×655068131² = 858228512503666322, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 655068091 and 655068100.

It is not a weakly prime, because it can be changed into another prime (655068031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 327534065 + 327534066.

It is an arithmetic number, because the mean of its divisors is an integer number (327534066).

Almost surely, 2^655068131 is an apocalyptic number.

655068131 is a deficient number, since it is larger than the sum of its proper divisors (1).

655068131 is an equidigital number, since it uses as much as digits as its factorization.

655068131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21600, while the sum is 35.

The square root of 655068131 is about 25594.2987987559. The cubic root of 655068131 is about 868.4846705141.

It can be divided in two parts, 65506 and 8131, that added together give a palindrome (73637).

The spelling of 655068131 in words is "six hundred fifty-five million, sixty-eight thousand, one hundred thirty-one".