1315005169 has 3 divisors (see below), whose sum is σ = 1315041433. Its totient is φ = 1314968906.

The previous prime is 1315005113. The next prime is 1315005179. The reversal of 1315005169 is 9615005131.

The square root of 1315005169 is 36263.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 9615005131 = 191 ⋅50340341.

It is not a de Polignac number, because 1315005169 - 2⁹ = 1315004657 is a prime.

It is a super-2 number, since 2×1315005169² = 3458477188993437122, 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 1315005169.

It is not an unprimeable number, because it can be changed into a prime (1315005179) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 18132 + ... + 54394.

Almost surely, 2^1315005169 is an apocalyptic number.

1315005169 is the 36263-rd square number.

1315005169 is the 18132-nd centered octagonal number.

It is an amenable number.

1315005169 is a deficient number, since it is larger than the sum of its proper divisors (36264).

1315005169 is an frugal number, since it uses more digits than its factorization.

1315005169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72526 (or 36263 counting only the distinct ones).

The product of its (nonzero) digits is 4050, while the sum is 31.

The cubic root of 1315005169 is about 1095.5759413264.

The spelling of 1315005169 in words is "one billion, three hundred fifteen million, five thousand, one hundred sixty-nine".