354457953 has 6 divisors (see below), whose sum is σ = 511994834. Its totient is φ = 236305296.

The previous prime is 354457949. The next prime is 354457969. The reversal of 354457953 is 359754453.

354457953 is a `hidden beast` number, since 3 + 544 + 57 + 9 + 53 = 666.

It can be written as a sum of positive squares in only one way, i.e., 179345664 + 175112289 = 13392^2 + 13233^2 .

It is not a de Polignac number, because 354457953 - 2² = 354457949 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 354457899 and 354457908.

It is not an unprimeable number, because it can be changed into a prime (354457913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 19692100 + ... + 19692117.

Almost surely, 2^354457953 is an apocalyptic number.

It is an amenable number.

354457953 is a deficient number, since it is larger than the sum of its proper divisors (157536881).

354457953 is a wasteful number, since it uses less digits than its factorization.

354457953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39384223 (or 39384220 counting only the distinct ones).

The product of its digits is 1134000, while the sum is 45.

The square root of 354457953 is about 18827.0537525126. The cubic root of 354457953 is about 707.7093092291.

The spelling of 354457953 in words is "three hundred fifty-four million, four hundred fifty-seven thousand, nine hundred fifty-three".