145756865 has 8 divisors (see below), whose sum is σ = 182513088. Its totient is φ = 111535600.

The previous prime is 145756859. The next prime is 145756889. The reversal of 145756865 is 568657541.

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

It is not a de Polignac number, because 145756865 - 2²⁴ = 128979649 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 633611 + ... + 633840.

It is an arithmetic number, because the mean of its divisors is an integer number (22814136).

Almost surely, 2^145756865 is an apocalyptic number.

It is an amenable number.

145756865 is a deficient number, since it is larger than the sum of its proper divisors (36756223).

145756865 is a wasteful number, since it uses less digits than its factorization.

145756865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1267479.

The product of its digits is 1008000, while the sum is 47.

The square root of 145756865 is about 12072.9807835513. The cubic root of 145756865 is about 526.2712834357.

The spelling of 145756865 in words is "one hundred forty-five million, seven hundred fifty-six thousand, eight hundred sixty-five".