15225091 has 8 divisors (see below), whose sum is σ = 17428320. Its totient is φ = 13028928.

The previous prime is 15225083. The next prime is 15225101. The reversal of 15225091 is 19052251.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 15225091 - 2³ = 15225083 is a prime.

It is not an unprimeable number, because it can be changed into a prime (15225031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4215 + ... + 6943.

It is an arithmetic number, because the mean of its divisors is an integer number (2178540).

Almost surely, 2^15225091 is an apocalyptic number.

15225091 is a deficient number, since it is larger than the sum of its proper divisors (2203229).

15225091 is an equidigital number, since it uses as much as digits as its factorization.

15225091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3533.

The product of its (nonzero) digits is 900, while the sum is 25.

The square root of 15225091 is about 3901.9342639260. The cubic root of 15225091 is about 247.8486926074.

The spelling of 15225091 in words is "fifteen million, two hundred twenty-five thousand, ninety-one".