356340631 has 2 divisors, whose sum is σ = 356340632. Its totient is φ = 356340630.

The previous prime is 356340623. The next prime is 356340643. The reversal of 356340631 is 136043653.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 356340631 - 2³ = 356340623 is a prime.

It is a super-2 number, since 2×356340631² = 253957290602956322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 356340593 and 356340602.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (356340601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 178170315 + 178170316.

It is an arithmetic number, because the mean of its divisors is an integer number (178170316).

Almost surely, 2^356340631 is an apocalyptic number.

356340631 is a deficient number, since it is larger than the sum of its proper divisors (1).

356340631 is an equidigital number, since it uses as much as digits as its factorization.

356340631 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19440, while the sum is 31.

The square root of 356340631 is about 18876.9868093401. The cubic root of 356340631 is about 708.9600797924.

The spelling of 356340631 in words is "three hundred fifty-six million, three hundred forty thousand, six hundred thirty-one".