354543961 has 2 divisors, whose sum is σ = 354543962. Its totient is φ = 354543960.

The previous prime is 354543949. The next prime is 354543979. The reversal of 354543961 is 169345453.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 344659225 + 9884736 = 18565^2 + 3144^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-354543961 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (354543661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 177271980 + 177271981.

It is an arithmetic number, because the mean of its divisors is an integer number (177271981).

Almost surely, 2^354543961 is an apocalyptic number.

It is an amenable number.

354543961 is a deficient number, since it is larger than the sum of its proper divisors (1).

354543961 is an equidigital number, since it uses as much as digits as its factorization.

354543961 is an evil number, because the sum of its binary digits is even.

The product of its digits is 194400, while the sum is 40.

The square root of 354543961 is about 18829.3377738039. The cubic root of 354543961 is about 707.7665456744.

The spelling of 354543961 in words is "three hundred fifty-four million, five hundred forty-three thousand, nine hundred sixty-one".