13451592361 has 3 divisors (see below), whose sum is σ = 13451708343. Its totient is φ = 13451476380.

The previous prime is 13451592311. The next prime is 13451592367. The reversal of 13451592361 is 16329515431.

It is a happy number.

The square root of 13451592361 is 115981.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 16329515431 = 29 ⋅563086739.

It can be written as a sum of positive squares in only one way, i.e., 5809335961 + 7642256400 = 76219^2 + 87420^2 .

It is not a de Polignac number, because 13451592361 - 2¹⁵ = 13451559593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13451592367) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 57991 + ... + 173971.

It is an arithmetic number, because the mean of its divisors is an integer number (4483902781).

Almost surely, 2^13451592361 is an apocalyptic number.

13451592361 is the 115981-st square number.

13451592361 is the 57991-st centered octagonal number.

It is an amenable number.

13451592361 is a deficient number, since it is larger than the sum of its proper divisors (115982).

13451592361 is an frugal number, since it uses more digits than its factorization.

13451592361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231962 (or 115981 counting only the distinct ones).

The product of its digits is 97200, while the sum is 40.

The spelling of 13451592361 in words is "thirteen billion, four hundred fifty-one million, five hundred ninety-two thousand, three hundred sixty-one".