1517379137 has 4 divisors (see below), whose sum is σ = 1521963696. Its totient is φ = 1512794580.

The previous prime is 1517379113. The next prime is 1517379173. The reversal of 1517379137 is 7319737151.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1517379137 - 2¹⁰ = 1517378113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1517379187) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2291783 + ... + 2292444.

It is an arithmetic number, because the mean of its divisors is an integer number (380490924).

Almost surely, 2^1517379137 is an apocalyptic number.

It is an amenable number.

1517379137 is a deficient number, since it is larger than the sum of its proper divisors (4584559).

1517379137 is an equidigital number, since it uses as much as digits as its factorization.

1517379137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4584558.

The product of its digits is 138915, while the sum is 44.

The square root of 1517379137 is about 38953.5510191305. The cubic root of 1517379137 is about 1149.1181991329.

The spelling of 1517379137 in words is "one billion, five hundred seventeen million, three hundred seventy-nine thousand, one hundred thirty-seven".