15231042 has 24 divisors (see below), whose sum is σ = 33421440. Its totient is φ = 5012280.

The previous prime is 15231023. The next prime is 15231053. The reversal of 15231042 is 24013251.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3934 + ... + 6777.

It is an arithmetic number, because the mean of its divisors is an integer number (1392560).

Almost surely, 2^15231042 is an apocalyptic number.

15231042 is an abundant number, since it is smaller than the sum of its proper divisors (18190398).

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

15231042 is a wasteful number, since it uses less digits than its factorization.

15231042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10798 (or 10795 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 15231042 is about 3902.6967599341. The cubic root of 15231042 is about 247.8809804372.

Adding to 15231042 its reverse (24013251), we get a palindrome (39244293).

The spelling of 15231042 in words is "fifteen million, two hundred thirty-one thousand, forty-two".