15105042 has 20 divisors (see below), whose sum is σ = 33846846. Its totient is φ = 5034960.

The previous prime is 15105031. The next prime is 15105071. The reversal of 15105042 is 24050151.

15105042 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 11148921 + 3956121 = 3339^2 + 1989^2 .

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 9 ways as a sum of consecutive naturals, for example, 46459 + ... + 46782.

Almost surely, 2^15105042 is an apocalyptic number.

15105042 is an abundant number, since it is smaller than the sum of its proper divisors (18741804).

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

15105042 is an equidigital number, since it uses as much as digits as its factorization.

15105042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93255 (or 93246 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

The square root of 15105042 is about 3886.5205518561. The cubic root of 15105042 is about 247.1955485107.

Adding to 15105042 its reverse (24050151), we get a palindrome (39155193).

The spelling of 15105042 in words is "fifteen million, one hundred five thousand, forty-two".