1505345513 has 6 divisors (see below), whose sum is σ = 1751116266. Its totient is φ = 1290296112.

The previous prime is 1505345507. The next prime is 1505345549. The reversal of 1505345513 is 3155435051.

It can be written as a sum of positive squares in only one way, i.e., 868893529 + 636451984 = 29477^2 + 25228^2 .

It is not a de Polignac number, because 1505345513 - 2¹⁸ = 1505083369 is a prime.

It is a super-2 number, since 2×1505345513² = 4532130227018466338, which contains 22 as substring.

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 1505345513.

It is not an unprimeable number, because it can be changed into a prime (1505345503) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 15360620 + ... + 15360717.

It is an arithmetic number, because the mean of its divisors is an integer number (291852711).

Almost surely, 2^1505345513 is an apocalyptic number.

It is an amenable number.

1505345513 is a deficient number, since it is larger than the sum of its proper divisors (245770753).

1505345513 is an equidigital number, since it uses as much as digits as its factorization.

1505345513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30721351 (or 30721344 counting only the distinct ones).

The product of its (nonzero) digits is 22500, while the sum is 32.

The square root of 1505345513 is about 38798.7823649145. The cubic root of 1505345513 is about 1146.0724270891.

The spelling of 1505345513 in words is "one billion, five hundred five million, three hundred forty-five thousand, five hundred thirteen".