145916659 has 16 divisors (see below), whose sum is σ = 175667200. Its totient is φ = 121028040.

The previous prime is 145916653. The next prime is 145916671. The reversal of 145916659 is 956619541.

It is a happy number.

It is not a de Polignac number, because 145916659 - 2²⁵ = 112362227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145916653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3772 + ... + 17494.

It is an arithmetic number, because the mean of its divisors is an integer number (10979200).

Almost surely, 2^145916659 is an apocalyptic number.

145916659 is a deficient number, since it is larger than the sum of its proper divisors (29750541).

145916659 is an equidigital number, since it uses as much as digits as its factorization.

145916659 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13775 (or 13761 counting only the distinct ones).

The product of its digits is 291600, while the sum is 46.

The square root of 145916659 is about 12079.5968061852. The cubic root of 145916659 is about 526.4635311695.

The spelling of 145916659 in words is "one hundred forty-five million, nine hundred sixteen thousand, six hundred fifty-nine".