15138822 has 16 divisors (see below), whose sum is σ = 30317040. Its totient is φ = 5039712.

The previous prime is 15138821. The next prime is 15138863. The reversal of 15138822 is 22883151.

It is a self number, because there is not a number n which added to its sum of digits gives 15138822.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15138821) 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, 6348 + ... + 8400.

It is an arithmetic number, because the mean of its divisors is an integer number (1894815).

Almost surely, 2^15138822 is an apocalyptic number.

15138822 is an abundant number, since it is smaller than the sum of its proper divisors (15178218).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

15138822 is a wasteful number, since it uses less digits than its factorization.

15138822 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3287.

The product of its digits is 3840, while the sum is 30.

The square root of 15138822 is about 3890.8639143512. The cubic root of 15138822 is about 247.3796823620.

The spelling of 15138822 in words is "fifteen million, one hundred thirty-eight thousand, eight hundred twenty-two".