15323445145 has 8 divisors (see below), whose sum is σ = 18396907200. Its totient is φ = 12252907440.

The previous prime is 15323445133. The next prime is 15323445157. The reversal of 15323445145 is 54154432351.

It is an interprime number because it is at equal distance from previous prime (15323445133) and next prime (15323445157).

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

It is not a de Polignac number, because 15323445145 - 2¹¹ = 15323443097 is a prime.

It is a super-2 number, since 2×15323445145² (a number of 21 digits) contains 22 as substring.

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, 719541 + ... + 740530.

It is an arithmetic number, because the mean of its divisors is an integer number (2299613400).

Almost surely, 2^15323445145 is an apocalyptic number.

It is an amenable number.

15323445145 is a deficient number, since it is larger than the sum of its proper divisors (3073462055).

15323445145 is a wasteful number, since it uses less digits than its factorization.

15323445145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1462175.

The product of its digits is 144000, while the sum is 37.

Adding to 15323445145 its reverse (54154432351), we get a palindrome (69477877496).

The spelling of 15323445145 in words is "fifteen billion, three hundred twenty-three million, four hundred forty-five thousand, one hundred forty-five".