1501065513 has 10 divisors (see below), whose sum is σ = 2242332554. Its totient is φ = 1000710288.

The previous prime is 1501065499. The next prime is 1501065529. The reversal of 1501065513 is 3155601051.

1501065513 is a `hidden beast` number, since 1 + 5 + 0 + 1 + 0 + 655 + 1 + 3 = 666.

It can be written as a sum of positive squares in only one way, i.e., 985457664 + 515607849 = 31392^2 + 22707^2 .

It is not a de Polignac number, because 1501065513 - 2¹⁷ = 1500934441 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1501065593) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 9265756 + ... + 9265917.

Almost surely, 2^1501065513 is an apocalyptic number.

It is an amenable number.

1501065513 is a deficient number, since it is larger than the sum of its proper divisors (741267041).

1501065513 is an equidigital number, since it uses as much as digits as its factorization.

1501065513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18531685 (or 18531676 counting only the distinct ones).

The product of its (nonzero) digits is 2250, while the sum is 27.

The square root of 1501065513 is about 38743.5867338067. The cubic root of 1501065513 is about 1144.9852246016.

Adding to 1501065513 its reverse (3155601051), we get a palindrome (4656666564).

The spelling of 1501065513 in words is "one billion, five hundred one million, sixty-five thousand, five hundred thirteen".