13613453 has 4 divisors (see below), whose sum is σ = 15558240. Its totient is φ = 11668668.

The previous prime is 13613437. The next prime is 13613459. The reversal of 13613453 is 35431631.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 35431631 = 1657 ⋅21383.

It is a cyclic number.

It is not a de Polignac number, because 13613453 - 2⁴ = 13613437 is a prime.

It is a super-2 number, since 2×13613453² = 370652205166418, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13613459) 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, 972383 + ... + 972396.

It is an arithmetic number, because the mean of its divisors is an integer number (3889560).

Almost surely, 2^13613453 is an apocalyptic number.

It is an amenable number.

13613453 is a deficient number, since it is larger than the sum of its proper divisors (1944787).

13613453 is an equidigital number, since it uses as much as digits as its factorization.

13613453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1944786.

The product of its digits is 3240, while the sum is 26.

The square root of 13613453 is about 3689.6413104799. The cubic root of 13613453 is about 238.7753179843.

The spelling of 13613453 in words is "thirteen million, six hundred thirteen thousand, four hundred fifty-three".