1505215313 has 4 divisors (see below), whose sum is σ = 1720246080. Its totient is φ = 1290184548.

The previous prime is 1505215291. The next prime is 1505215351. The reversal of 1505215313 is 3135125051.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3135125051 = 18587 ⋅168673.

It is a cyclic number.

It is not a de Polignac number, because 1505215313 - 2¹⁶ = 1505149777 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1505215213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 107515373 + ... + 107515386.

It is an arithmetic number, because the mean of its divisors is an integer number (430061520).

Almost surely, 2^1505215313 is an apocalyptic number.

It is an amenable number.

1505215313 is a deficient number, since it is larger than the sum of its proper divisors (215030767).

1505215313 is an equidigital number, since it uses as much as digits as its factorization.

1505215313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215030766.

The product of its (nonzero) digits is 2250, while the sum is 26.

The square root of 1505215313 is about 38797.1044409245. The cubic root of 1505215313 is about 1146.0393841917.

The spelling of 1505215313 in words is "one billion, five hundred five million, two hundred fifteen thousand, three hundred thirteen".