354136523 has 4 divisors (see below), whose sum is σ = 381377808. Its totient is φ = 326895240.

The previous prime is 354136511. The next prime is 354136597. The reversal of 354136523 is 325631453.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 325631453 = 7 ⋅46518779.

It is a cyclic number.

It is not a de Polignac number, because 354136523 - 2⁴ = 354136507 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 354136523.

It is not an unprimeable number, because it can be changed into a prime (354132523) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13620623 + ... + 13620648.

It is an arithmetic number, because the mean of its divisors is an integer number (95344452).

Almost surely, 2^354136523 is an apocalyptic number.

354136523 is a deficient number, since it is larger than the sum of its proper divisors (27241285).

354136523 is a wasteful number, since it uses less digits than its factorization.

354136523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27241284.

The product of its digits is 32400, while the sum is 32.

The square root of 354136523 is about 18818.5154302883. The cubic root of 354136523 is about 707.4953225893.

Adding to 354136523 its reverse (325631453), we get a palindrome (679767976).

The spelling of 354136523 in words is "three hundred fifty-four million, one hundred thirty-six thousand, five hundred twenty-three".