13234532257 has 4 divisors (see below), whose sum is σ = 13592222356. Its totient is φ = 12876842160.

The previous prime is 13234532239. The next prime is 13234532263. The reversal of 13234532257 is 75223543231.

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

It can be written as a sum of positive squares in 2 ways, for example, as 5215150656 + 8019381601 = 72216^2 + 89551^2 .

It is a cyclic number.

It is not a de Polignac number, because 13234532257 - 2¹⁵ = 13234499489 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37), and also a Moran number because the ratio is a prime number: 357690061 = 13234532257 / (1 + 3 + 2 + 3 + 4 + 5 + 3 + 2 + 2 + 5 + 7).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13234532287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 178844994 + ... + 178845067.

It is an arithmetic number, because the mean of its divisors is an integer number (3398055589).

Almost surely, 2^13234532257 is an apocalyptic number.

It is an amenable number.

13234532257 is a deficient number, since it is larger than the sum of its proper divisors (357690099).

13234532257 is an equidigital number, since it uses as much as digits as its factorization.

13234532257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 357690098.

The product of its digits is 151200, while the sum is 37.

The spelling of 13234532257 in words is "thirteen billion, two hundred thirty-four million, five hundred thirty-two thousand, two hundred fifty-seven".