15222195 has 16 divisors (see below), whose sum is σ = 27061920. Its totient is φ = 8118432.

The previous prime is 15222143. The next prime is 15222197. The reversal of 15222195 is 59122251.

15222195 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 15222195 - 2⁶ = 15222131 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (15222197) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56244 + ... + 56513.

It is an arithmetic number, because the mean of its divisors is an integer number (1691370).

Almost surely, 2^15222195 is an apocalyptic number.

15222195 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

15222195 is a deficient number, since it is larger than the sum of its proper divisors (11839725).

15222195 is a wasteful number, since it uses less digits than its factorization.

15222195 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112771 (or 112765 counting only the distinct ones).

The product of its digits is 1800, while the sum is 27.

The square root of 15222195 is about 3901.5631482779. The cubic root of 15222195 is about 247.8329769854.

The spelling of 15222195 in words is "fifteen million, two hundred twenty-two thousand, one hundred ninety-five".