15274240073 has 4 divisors (see below), whose sum is σ = 15295078788. Its totient is φ = 15253401360.

The previous prime is 15274240061. The next prime is 15274240099. The reversal of 15274240073 is 37004247251.

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

It can be written as a sum of positive squares in 2 ways, for example, as 11158119424 + 4116120649 = 105632^2 + 64157^2 .

It is a cyclic number.

It is not a de Polignac number, because 15274240073 - 2⁸ = 15274239817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15274740073) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10418258 + ... + 10419723.

It is an arithmetic number, because the mean of its divisors is an integer number (3823769697).

Almost surely, 2^15274240073 is an apocalyptic number.

It is an amenable number.

15274240073 is a deficient number, since it is larger than the sum of its proper divisors (20838715).

15274240073 is an equidigital number, since it uses as much as digits as its factorization.

15274240073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20838714.

The product of its (nonzero) digits is 47040, while the sum is 35.

The spelling of 15274240073 in words is "fifteen billion, two hundred seventy-four million, two hundred forty thousand, seventy-three".