15006491 has 2 divisors, whose sum is σ = 15006492. Its totient is φ = 15006490.

The previous prime is 15006469. The next prime is 15006499. The reversal of 15006491 is 19460051.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15006491 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 15006491.

It is not a weakly prime, because it can be changed into another prime (15006499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7503245 + 7503246.

It is an arithmetic number, because the mean of its divisors is an integer number (7503246).

Almost surely, 2^15006491 is an apocalyptic number.

15006491 is a deficient number, since it is larger than the sum of its proper divisors (1).

15006491 is an equidigital number, since it uses as much as digits as its factorization.

15006491 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1080, while the sum is 26.

The square root of 15006491 is about 3873.8212400677. The cubic root of 15006491 is about 246.6567760420.

The spelling of 15006491 in words is "fifteen million, six thousand, four hundred ninety-one".