1315189269 has 6 divisors (see below), whose sum is σ = 1899717846. Its totient is φ = 876792840.

The previous prime is 1315189261. The next prime is 1315189277. The reversal of 1315189269 is 9629815131.

It is an interprime number because it is at equal distance from previous prime (1315189261) and next prime (1315189277).

It can be written as a sum of positive squares in only one way, i.e., 971568900 + 343620369 = 31170^2 + 18537^2 .

It is not a de Polignac number, because 1315189269 - 2³ = 1315189261 is a prime.

It is a super-2 number, since 2×1315189269² = 3459445626585508722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1315189261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 73066062 + ... + 73066079.

It is an arithmetic number, because the mean of its divisors is an integer number (316619641).

Almost surely, 2^1315189269 is an apocalyptic number.

It is an amenable number.

1315189269 is a deficient number, since it is larger than the sum of its proper divisors (584528577).

1315189269 is a wasteful number, since it uses less digits than its factorization.

1315189269 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146132147 (or 146132144 counting only the distinct ones).

The product of its digits is 116640, while the sum is 45.

The square root of 1315189269 is about 36265.5383111846. The cubic root of 1315189269 is about 1095.6270656170.

The spelling of 1315189269 in words is "one billion, three hundred fifteen million, one hundred eighty-nine thousand, two hundred sixty-nine".