1505506165 has 16 divisors (see below), whose sum is σ = 1867746816. Its totient is φ = 1163764800.

The previous prime is 1505506141. The next prime is 1505506187. The reversal of 1505506165 is 5616055051.

It is not a de Polignac number, because 1505506165 - 2¹⁵ = 1505473397 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1505506165.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 98755 + ... + 112975.

It is an arithmetic number, because the mean of its divisors is an integer number (116734176).

Almost surely, 2^1505506165 is an apocalyptic number.

It is an amenable number.

1505506165 is a deficient number, since it is larger than the sum of its proper divisors (362240651).

1505506165 is a wasteful number, since it uses less digits than its factorization.

1505506165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14940.

The product of its (nonzero) digits is 22500, while the sum is 34.

The square root of 1505506165 is about 38800.8526323843. The cubic root of 1505506165 is about 1146.1131956428.

The spelling of 1505506165 in words is "one billion, five hundred five million, five hundred six thousand, one hundred sixty-five".