15138734 has 16 divisors (see below), whose sum is σ = 24696672. Its totient is φ = 6918048.

The previous prime is 15138733. The next prime is 15138769. The reversal of 15138734 is 43783151.

It is a self number, because there is not a number n which added to its sum of digits gives 15138734.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15138731) 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, 149 + ... + 5504.

It is an arithmetic number, because the mean of its divisors is an integer number (1543542).

Almost surely, 2^15138734 is an apocalyptic number.

15138734 is a deficient number, since it is larger than the sum of its proper divisors (9557938).

15138734 is a wasteful number, since it uses less digits than its factorization.

15138734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5771.

The product of its digits is 10080, while the sum is 32.

The square root of 15138734 is about 3890.8526057922. The cubic root of 15138734 is about 247.3792030325.

The spelling of 15138734 in words is "fifteen million, one hundred thirty-eight thousand, seven hundred thirty-four".