145656865 has 8 divisors (see below), whose sum is σ = 175946688. Its totient is φ = 115753200.

The previous prime is 145656859. The next prime is 145656883. The reversal of 145656865 is 568656541.

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

It is not a de Polignac number, because 145656865 - 2⁷ = 145656737 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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, 95707 + ... + 97216.

It is an arithmetic number, because the mean of its divisors is an integer number (21993336).

Almost surely, 2^145656865 is an apocalyptic number.

It is an amenable number.

145656865 is a deficient number, since it is larger than the sum of its proper divisors (30289823).

145656865 is a wasteful number, since it uses less digits than its factorization.

145656865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193079.

The product of its digits is 864000, while the sum is 46.

The square root of 145656865 is about 12068.8385936676. The cubic root of 145656865 is about 526.1509022143.

The spelling of 145656865 in words is "one hundred forty-five million, six hundred fifty-six thousand, eight hundred sixty-five".