356455457 has 2 divisors, whose sum is σ = 356455458. Its totient is φ = 356455456.

The previous prime is 356455441. The next prime is 356455459. The reversal of 356455457 is 754554653.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 354907921 + 1547536 = 18839^2 + 1244^2 .

It is a cyclic number.

It is not a de Polignac number, because 356455457 - 2⁴ = 356455441 is a prime.

Together with 356455459, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (356455459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 178227728 + 178227729.

It is an arithmetic number, because the mean of its divisors is an integer number (178227729).

Almost surely, 2^356455457 is an apocalyptic number.

It is an amenable number.

356455457 is a deficient number, since it is larger than the sum of its proper divisors (1).

356455457 is an equidigital number, since it uses as much as digits as its factorization.

356455457 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1260000, while the sum is 44.

The square root of 356455457 is about 18880.0279925640. The cubic root of 356455457 is about 709.0362225806.

The spelling of 356455457 in words is "three hundred fifty-six million, four hundred fifty-five thousand, four hundred fifty-seven".