15335121097 has 4 divisors (see below), whose sum is σ = 15336280516. Its totient is φ = 15333961680.

The previous prime is 15335121079. The next prime is 15335121127. The reversal of 15335121097 is 79012153351.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 79012153351 = 1601 ⋅49351751.

It can be written as a sum of positive squares in 2 ways, for example, as 1123858576 + 14211262521 = 33524^2 + 119211^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15335121097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15335121397) 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, 559638 + ... + 586399.

It is an arithmetic number, because the mean of its divisors is an integer number (3834070129).

Almost surely, 2^15335121097 is an apocalyptic number.

It is an amenable number.

15335121097 is a deficient number, since it is larger than the sum of its proper divisors (1159419).

15335121097 is a wasteful number, since it uses less digits than its factorization.

15335121097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1159418.

The product of its (nonzero) digits is 28350, while the sum is 37.

The spelling of 15335121097 in words is "fifteen billion, three hundred thirty-five million, one hundred twenty-one thousand, ninety-seven".