15222075 has 24 divisors (see below), whose sum is σ = 27456576. Its totient is φ = 7380000.

The previous prime is 15222049. The next prime is 15222079. The reversal of 15222075 is 57022251.

15222075 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 15222075 - 2⁸ = 15221819 is a prime.

It is not an unprimeable number, because it can be changed into a prime (15222079) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8401 + ... + 10050.

It is an arithmetic number, because the mean of its divisors is an integer number (1144024).

Almost surely, 2^15222075 is an apocalyptic number.

15222075 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

15222075 is a deficient number, since it is larger than the sum of its proper divisors (12234501).

15222075 is a wasteful number, since it uses less digits than its factorization.

15222075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18475 (or 18470 counting only the distinct ones).

The product of its (nonzero) digits is 1400, while the sum is 24.

The square root of 15222075 is about 3901.5477697960. The cubic root of 15222075 is about 247.8323257426.

The spelling of 15222075 in words is "fifteen million, two hundred twenty-two thousand, seventy-five".