15138235 has 16 divisors (see below), whose sum is σ = 20825856. Its totient is φ = 10348128.

The previous prime is 15138197. The next prime is 15138239. The reversal of 15138235 is 53283151.

It is not a de Polignac number, because 15138235 - 2¹³ = 15130043 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15138239) 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, 17892 + ... + 18718.

It is an arithmetic number, because the mean of its divisors is an integer number (1301616).

Almost surely, 2^15138235 is an apocalyptic number.

15138235 is a deficient number, since it is larger than the sum of its proper divisors (5687621).

15138235 is an equidigital number, since it uses as much as digits as its factorization.

15138235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1362.

The product of its digits is 3600, while the sum is 28.

The square root of 15138235 is about 3890.7884805011. The cubic root of 15138235 is about 247.3764849809.

The spelling of 15138235 in words is "fifteen million, one hundred thirty-eight thousand, two hundred thirty-five".