13523151274 has 4 divisors (see below), whose sum is σ = 20284726914. Its totient is φ = 6761575636.

The previous prime is 13523151253. The next prime is 13523151311. The reversal of 13523151274 is 47215132531.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 8795626225 + 4727525049 = 93785^2 + 68757^2 .

It is a super-3 number, since 3×13523151274³ (a number of 31 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3380787817 + ... + 3380787820.

Almost surely, 2^13523151274 is an apocalyptic number.

13523151274 is a deficient number, since it is larger than the sum of its proper divisors (6761575640).

13523151274 is an equidigital number, since it uses as much as digits as its factorization.

13523151274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6761575639.

The product of its digits is 25200, while the sum is 34.

The spelling of 13523151274 in words is "thirteen billion, five hundred twenty-three million, one hundred fifty-one thousand, two hundred seventy-four".