1381515317 has 8 divisors (see below), whose sum is σ = 1700326656. Its totient is φ = 1093066992.

The previous prime is 1381515313. The next prime is 1381515347. The reversal of 1381515317 is 7135151831.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1381515317 - 2² = 1381515313 is a prime.

It is a super-2 number, since 2×1381515317² = 3817169142211220978, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1381515313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7590653 + ... + 7590834.

It is an arithmetic number, because the mean of its divisors is an integer number (212540832).

Almost surely, 2^1381515317 is an apocalyptic number.

It is an amenable number.

1381515317 is a deficient number, since it is larger than the sum of its proper divisors (318811339).

1381515317 is a wasteful number, since it uses less digits than its factorization.

1381515317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15181507.

The product of its digits is 12600, while the sum is 35.

The square root of 1381515317 is about 37168.7411274582. The cubic root of 1381515317 is about 1113.7436342447.

The spelling of 1381515317 in words is "one billion, three hundred eighty-one million, five hundred fifteen thousand, three hundred seventeen".