13977252 has 24 divisors (see below), whose sum is σ = 36237600. Its totient is φ = 4659048.

The previous prime is 13977251. The next prime is 13977259. The reversal of 13977252 is 25277931.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (13977251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64602 + ... + 64817.

It is an arithmetic number, because the mean of its divisors is an integer number (1509900).

Almost surely, 2^13977252 is an apocalyptic number.

13977252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13977252 is an abundant number, since it is smaller than the sum of its proper divisors (22260348).

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

13977252 is a wasteful number, since it uses less digits than its factorization.

13977252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129432 (or 129424 counting only the distinct ones).

The product of its digits is 26460, while the sum is 36.

The square root of 13977252 is about 3738.6163215821. The cubic root of 13977252 is about 240.8836177560.

It can be divided in two parts, 1397 and 7252, that added together give a square (8649 = 93²).

The spelling of 13977252 in words is "thirteen million, nine hundred seventy-seven thousand, two hundred fifty-two".