13942919 has 2 divisors, whose sum is σ = 13942920. Its totient is φ = 13942918.

The previous prime is 13942897. The next prime is 13942931. The reversal of 13942919 is 91924931.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13942919 - 2¹² = 13938823 is a prime.

It is a super-2 number, since 2×13942919² = 388809980481122, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13942519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6971459 + 6971460.

It is an arithmetic number, because the mean of its divisors is an integer number (6971460).

Almost surely, 2^13942919 is an apocalyptic number.

13942919 is a deficient number, since it is larger than the sum of its proper divisors (1).

13942919 is an equidigital number, since it uses as much as digits as its factorization.

13942919 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17496, while the sum is 38.

The square root of 13942919 is about 3734.0218263958. The cubic root of 13942919 is about 240.6862246860.

The spelling of 13942919 in words is "thirteen million, nine hundred forty-two thousand, nine hundred nineteen".