15240000155 has 4 divisors (see below), whose sum is σ = 18288000192. Its totient is φ = 12192000120.

The previous prime is 15240000143. The next prime is 15240000197. The reversal of 15240000155 is 55100004251.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 15240000155 - 2²⁰ = 15238951579 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 15240000155.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1524000011 + ... + 1524000020.

It is an arithmetic number, because the mean of its divisors is an integer number (4572000048).

Almost surely, 2^15240000155 is an apocalyptic number.

15240000155 is a deficient number, since it is larger than the sum of its proper divisors (3048000037).

15240000155 is an equidigital number, since it uses as much as digits as its factorization.

15240000155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3048000036.

The product of its (nonzero) digits is 1000, while the sum is 23.

The spelling of 15240000155 in words is "fifteen billion, two hundred forty million, one hundred fifty-five", and thus it is an aban number.