14575991 has 2 divisors, whose sum is σ = 14575992. Its totient is φ = 14575990.

The previous prime is 14575973. The next prime is 14575993. The reversal of 14575991 is 19957541.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-14575991 is a prime.

Together with 14575993, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14575993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7287995 + 7287996.

It is an arithmetic number, because the mean of its divisors is an integer number (7287996).

Almost surely, 2^14575991 is an apocalyptic number.

14575991 is a deficient number, since it is larger than the sum of its proper divisors (1).

14575991 is an equidigital number, since it uses as much as digits as its factorization.

14575991 is an evil number, because the sum of its binary digits is even.

The product of its digits is 56700, while the sum is 41.

The square root of 14575991 is about 3817.8516210036. The cubic root of 14575991 is about 244.2751922882.

The spelling of 14575991 in words is "fourteen million, five hundred seventy-five thousand, nine hundred ninety-one".