14597991 has 12 divisors (see below), whose sum is σ = 21813480. Its totient is φ = 9396240.

The previous prime is 14597981. The next prime is 14598011. The reversal of 14597991 is 19979541.

It is not a de Polignac number, because 14597991 - 2⁵ = 14597959 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14597981) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27705 + ... + 28226.

It is an arithmetic number, because the mean of its divisors is an integer number (1817790).

Almost surely, 2^14597991 is an apocalyptic number.

14597991 is a deficient number, since it is larger than the sum of its proper divisors (7215489).

14597991 is a wasteful number, since it uses less digits than its factorization.

14597991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55966 (or 55963 counting only the distinct ones).

The product of its digits is 102060, while the sum is 45.

The square root of 14597991 is about 3820.7317361992. The cubic root of 14597991 is about 244.3980279100.

It can be divided in two parts, 145979 and 91, that added together give a triangular number (146070 = T₅₄₀).

The spelling of 14597991 in words is "fourteen million, five hundred ninety-seven thousand, nine hundred ninety-one".