13972019 has 16 divisors (see below), whose sum is σ = 14929920. Its totient is φ = 13060320.

The previous prime is 13972009. The next prime is 13972027. The reversal of 13972019 is 91027931.

It is a happy number.

13972019 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 13972019 - 2⁴ = 13972003 is a prime.

It is a super-2 number, since 2×13972019² = 390434629872722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13972009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 176822 + ... + 176900.

It is an arithmetic number, because the mean of its divisors is an integer number (933120).

Almost surely, 2^13972019 is an apocalyptic number.

13972019 is a deficient number, since it is larger than the sum of its proper divisors (957901).

13972019 is an equidigital number, since it uses as much as digits as its factorization.

13972019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250.

The product of its (nonzero) digits is 3402, while the sum is 32.

The square root of 13972019 is about 3737.9163982090. The cubic root of 13972019 is about 240.8535522058.

The spelling of 13972019 in words is "thirteen million, nine hundred seventy-two thousand, nineteen".