13631274 has 16 divisors (see below), whose sum is σ = 30291840. Its totient is φ = 4543740.

The previous prime is 13631257. The next prime is 13631279. The reversal of 13631274 is 47213631.

13631274 is a `hidden beast` number, since 1 + 3 + 631 + 27 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a zygodrome in base 5.

It is not an unprimeable number, because it can be changed into a prime (13631279) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 126162 + ... + 126269.

It is an arithmetic number, because the mean of its divisors is an integer number (1893240).

Almost surely, 2^13631274 is an apocalyptic number.

13631274 is an abundant number, since it is smaller than the sum of its proper divisors (16660566).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13631274 is a wasteful number, since it uses less digits than its factorization.

13631274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252442 (or 252436 counting only the distinct ones).

The product of its digits is 3024, while the sum is 27.

The square root of 13631274 is about 3692.0555250429. The cubic root of 13631274 is about 238.8794639713.

The spelling of 13631274 in words is "thirteen million, six hundred thirty-one thousand, two hundred seventy-four".