15139434 has 16 divisors (see below), whose sum is σ = 30620160. Its totient is φ = 4989600.

The previous prime is 15139433. The next prime is 15139441. The reversal of 15139434 is 43493151.

It is not an unprimeable number, because it can be changed into a prime (15139433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13642 + ... + 14709.

It is an arithmetic number, because the mean of its divisors is an integer number (1913760).

Almost surely, 2^15139434 is an apocalyptic number.

15139434 is an abundant number, since it is smaller than the sum of its proper divisors (15480726).

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

15139434 is a wasteful number, since it uses less digits than its factorization.

15139434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28445.

The product of its digits is 6480, while the sum is 30.

The square root of 15139434 is about 3890.9425593293. The cubic root of 15139434 is about 247.3830158298.

The spelling of 15139434 in words is "fifteen million, one hundred thirty-nine thousand, four hundred thirty-four".