1505501165 has 16 divisors (see below), whose sum is σ = 2112705408. Its totient is φ = 1008334656.

The previous prime is 1505501071. The next prime is 1505501191. The reversal of 1505501165 is 5611055051.

It is a happy number.

It is not a de Polignac number, because 1505501165 - 2²⁶ = 1438392301 is a prime.

It is a Smith number, since the sum of its digits (29) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

1505501165 is a modest number, since divided by 501165 gives 1505 as remainder.

It is a Curzon number.

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, 498662 + ... + 501671.

It is an arithmetic number, because the mean of its divisors is an integer number (132044088).

Almost surely, 2^1505501165 is an apocalyptic number.

It is an amenable number.

1505501165 is a deficient number, since it is larger than the sum of its proper divisors (607204243).

1505501165 is a wasteful number, since it uses less digits than its factorization.

1505501165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1000388.

The product of its (nonzero) digits is 3750, while the sum is 29.

The square root of 1505501165 is about 38800.7882007570. The cubic root of 1505501165 is about 1146.1119268398. Note that the first 3 decimals are identical.

The spelling of 1505501165 in words is "one billion, five hundred five million, five hundred one thousand, one hundred sixty-five".