1505115313 has 4 divisors (see below), whose sum is σ = 1620893428. Its totient is φ = 1389337200.

The previous prime is 1505115211. The next prime is 1505115373. The reversal of 1505115313 is 3135115051.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3135115051 = 5099 ⋅614849.

It can be written as a sum of positive squares in 2 ways, for example, as 928299024 + 576816289 = 30468^2 + 24017^2 .

It is a cyclic number.

It is not a de Polignac number, because 1505115313 - 2¹⁷ = 1504984241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1505115373) 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, 57889038 + ... + 57889063.

It is an arithmetic number, because the mean of its divisors is an integer number (405223357).

Almost surely, 2^1505115313 is an apocalyptic number.

1505115313 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1505115313 is a deficient number, since it is larger than the sum of its proper divisors (115778115).

1505115313 is a wasteful number, since it uses less digits than its factorization.

1505115313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115778114.

The product of its (nonzero) digits is 1125, while the sum is 25.

The square root of 1505115313 is about 38795.8156635480. The cubic root of 1505115313 is about 1146.0140043284.

The spelling of 1505115313 in words is "one billion, five hundred five million, one hundred fifteen thousand, three hundred thirteen".