1317423615 has 16 divisors (see below), whose sum is σ = 2218819200. Its totient is φ = 665645472.

The previous prime is 1317423607. The next prime is 1317423617. The reversal of 1317423615 is 5163247131.

It is not a de Polignac number, because 1317423615 - 2³ = 1317423607 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1317423617) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2310985 + ... + 2311554.

It is an arithmetic number, because the mean of its divisors is an integer number (138676200).

Almost surely, 2^1317423615 is an apocalyptic number.

1317423615 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1317423615 is a deficient number, since it is larger than the sum of its proper divisors (901395585).

1317423615 is a wasteful number, since it uses less digits than its factorization.

1317423615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4622566.

The product of its digits is 15120, while the sum is 33.

The square root of 1317423615 is about 36296.3305996626. The cubic root of 1317423615 is about 1096.2471601353.

The spelling of 1317423615 in words is "one billion, three hundred seventeen million, four hundred twenty-three thousand, six hundred fifteen".