15135143465 has 8 divisors (see below), whose sum is σ = 19559262408. Its totient is φ = 11176721280.

The previous prime is 15135143461. The next prime is 15135143477. The reversal of 15135143465 is 56434153151.

It can be written as a sum of positive squares in 4 ways, for example, as 87459904 + 15047683561 = 9352^2 + 122669^2 .

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

It is not a de Polignac number, because 15135143465 - 2² = 15135143461 is a prime.

It is a super-2 number, since 2×15135143465² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15135143461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 116424116 + ... + 116424245.

It is an arithmetic number, because the mean of its divisors is an integer number (2444907801).

Almost surely, 2^15135143465 is an apocalyptic number.

It is an amenable number.

15135143465 is a deficient number, since it is larger than the sum of its proper divisors (4424118943).

15135143465 is a wasteful number, since it uses less digits than its factorization.

15135143465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232848379.

The product of its digits is 108000, while the sum is 38.

The spelling of 15135143465 in words is "fifteen billion, one hundred thirty-five million, one hundred forty-three thousand, four hundred sixty-five".