765242515 has 8 divisors (see below), whose sum is σ = 918728928. Its totient is φ = 611902080.

The previous prime is 765242501. The next prime is 765242519. The reversal of 765242515 is 515242567.

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

It is not a de Polignac number, because 765242515 - 2¹⁷ = 765111443 is a prime.

It is a super-2 number, since 2×765242515² = 1171192213527050450, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (765242519) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24607 + ... + 46216.

It is an arithmetic number, because the mean of its divisors is an integer number (114841116).

Almost surely, 2^765242515 is an apocalyptic number.

765242515 is a deficient number, since it is larger than the sum of its proper divisors (153486413).

765242515 is a wasteful number, since it uses less digits than its factorization.

765242515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72989.

The product of its digits is 84000, while the sum is 37.

The square root of 765242515 is about 27663.0170986463. The cubic root of 765242515 is about 914.6740614996.

The spelling of 765242515 in words is "seven hundred sixty-five million, two hundred forty-two thousand, five hundred fifteen".