354157956731 has 2 divisors, whose sum is σ = 354157956732. Its totient is φ = 354157956730.

The previous prime is 354157956689. The next prime is 354157956749. The reversal of 354157956731 is 137659751453.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 354157956731 - 2¹⁰ = 354157955707 is a prime.

It is a super-2 number, since 2×354157956731² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (354157956331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 177078978365 + 177078978366.

It is an arithmetic number, because the mean of its divisors is an integer number (177078978366).

Almost surely, 2^354157956731 is an apocalyptic number.

354157956731 is a deficient number, since it is larger than the sum of its proper divisors (1).

354157956731 is an equidigital number, since it uses as much as digits as its factorization.

354157956731 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11907000, while the sum is 56.

The spelling of 354157956731 in words is "three hundred fifty-four billion, one hundred fifty-seven million, nine hundred fifty-six thousand, seven hundred thirty-one".