356245961 has 2 divisors, whose sum is σ = 356245962. Its totient is φ = 356245960.

The previous prime is 356245957. The next prime is 356245993. The reversal of 356245961 is 169542653.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 355548736 + 697225 = 18856^2 + 835^2 .

It is a cyclic number.

It is not a de Polignac number, because 356245961 - 2² = 356245957 is a prime.

It is a super-2 number, since 2×356245961² = 253822369457627042, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (356245061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 178122980 + 178122981.

It is an arithmetic number, because the mean of its divisors is an integer number (178122981).

Almost surely, 2^356245961 is an apocalyptic number.

It is an amenable number.

356245961 is a deficient number, since it is larger than the sum of its proper divisors (1).

356245961 is an equidigital number, since it uses as much as digits as its factorization.

356245961 is an evil number, because the sum of its binary digits is even.

The product of its digits is 194400, while the sum is 41.

The square root of 356245961 is about 18874.4790921498. The cubic root of 356245961 is about 708.8972904372.

The spelling of 356245961 in words is "three hundred fifty-six million, two hundred forty-five thousand, nine hundred sixty-one".