14992409 has 2 divisors, whose sum is σ = 14992410. Its totient is φ = 14992408.

The previous prime is 14992379. The next prime is 14992427. The reversal of 14992409 is 90429941.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14992384 + 25 = 3872^2 + 5^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-14992409 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (14992469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7496204 + 7496205.

It is an arithmetic number, because the mean of its divisors is an integer number (7496205).

Almost surely, 2^14992409 is an apocalyptic number.

It is an amenable number.

14992409 is a deficient number, since it is larger than the sum of its proper divisors (1).

14992409 is an equidigital number, since it uses as much as digits as its factorization.

14992409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23328, while the sum is 38.

The square root of 14992409 is about 3872.0032283044. The cubic root of 14992409 is about 246.5795981558.

The spelling of 14992409 in words is "fourteen million, nine hundred ninety-two thousand, four hundred nine".