15249401 has 4 divisors (see below), whose sum is σ = 15477072. Its totient is φ = 15021732.

The previous prime is 15249383. The next prime is 15249461. The reversal of 15249401 is 10494251.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 15249401 - 2⁶ = 15249337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15249461) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 113735 + ... + 113868.

It is an arithmetic number, because the mean of its divisors is an integer number (3869268).

Almost surely, 2^15249401 is an apocalyptic number.

It is an amenable number.

15249401 is a deficient number, since it is larger than the sum of its proper divisors (227671).

15249401 is an equidigital number, since it uses as much as digits as its factorization.

15249401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227670.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 15249401 is about 3905.0481431091. The cubic root of 15249401 is about 247.9805363237.

The spelling of 15249401 in words is "fifteen million, two hundred forty-nine thousand, four hundred one".