354525491 has 2 divisors, whose sum is σ = 354525492. Its totient is φ = 354525490.

The previous prime is 354525481. The next prime is 354525511. The reversal of 354525491 is 194525453.

It is a weak prime.

It is an emirp because it is prime and its reverse (194525453) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 354525491 - 2¹⁴ = 354509107 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (354525421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 177262745 + 177262746.

It is an arithmetic number, because the mean of its divisors is an integer number (177262746).

Almost surely, 2^354525491 is an apocalyptic number.

354525491 is a deficient number, since it is larger than the sum of its proper divisors (1).

354525491 is an equidigital number, since it uses as much as digits as its factorization.

354525491 is an evil number, because the sum of its binary digits is even.

The product of its digits is 108000, while the sum is 38.

The square root of 354525491 is about 18828.8473093814. The cubic root of 354525491 is about 707.7542550734.

Subtracting from 354525491 its sum of digits (38), we obtain a palindrome (354525453).

The spelling of 354525491 in words is "three hundred fifty-four million, five hundred twenty-five thousand, four hundred ninety-one".