15090749 has 4 divisors (see below), whose sum is σ = 15113280. Its totient is φ = 15068220.

The previous prime is 15090727. The next prime is 15090773. The reversal of 15090749 is 94709051.

15090749 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, and also an emirpimes, since its reverse is a distinct semiprime: 94709051 = 1291 ⋅73361.

It is a cyclic number.

It is not a de Polignac number, because 15090749 - 2¹² = 15086653 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15090799) 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, 10229 + ... + 11610.

It is an arithmetic number, because the mean of its divisors is an integer number (3778320).

Almost surely, 2^15090749 is an apocalyptic number.

It is an amenable number.

15090749 is a deficient number, since it is larger than the sum of its proper divisors (22531).

15090749 is an equidigital number, since it uses as much as digits as its factorization.

15090749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22530.

The product of its (nonzero) digits is 11340, while the sum is 35.

The square root of 15090749 is about 3884.6813254114. The cubic root of 15090749 is about 247.1175551058.

The spelling of 15090749 in words is "fifteen million, ninety thousand, seven hundred forty-nine".