15122253445 has 8 divisors (see below), whose sum is σ = 19542604536. Its totient is φ = 11167202496.

The previous prime is 15122253439. The next prime is 15122253451. The reversal of 15122253445 is 54435222151.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (15122253439) and next prime (15122253451).

It can be written as a sum of positive squares in 4 ways, for example, as 94926049 + 15027327396 = 9743^2 + 122586^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15122253445 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 15122253445.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 116324962 + ... + 116325091.

It is an arithmetic number, because the mean of its divisors is an integer number (2442825567).

Almost surely, 2^15122253445 is an apocalyptic number.

It is an amenable number.

15122253445 is a deficient number, since it is larger than the sum of its proper divisors (4420351091).

15122253445 is a wasteful number, since it uses less digits than its factorization.

15122253445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232650071.

The product of its digits is 48000, while the sum is 34.

Adding to 15122253445 its reverse (54435222151), we get a palindrome (69557475596).

The spelling of 15122253445 in words is "fifteen billion, one hundred twenty-two million, two hundred fifty-three thousand, four hundred forty-five".