145915979 has 8 divisors (see below), whose sum is σ = 166102272. Its totient is φ = 126883240.

The previous prime is 145915961. The next prime is 145915997. The reversal of 145915979 is 979519541.

It is an interprime number because it is at equal distance from previous prime (145915961) and next prime (145915997).

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

It is a de Polignac number, because none of the positive numbers 2^k-145915979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145915919) 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, 288119 + ... + 288624.

It is an arithmetic number, because the mean of its divisors is an integer number (20762784).

Almost surely, 2^145915979 is an apocalyptic number.

145915979 is a deficient number, since it is larger than the sum of its proper divisors (20186293).

145915979 is a wasteful number, since it uses less digits than its factorization.

145915979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 576777.

The product of its digits is 510300, while the sum is 50.

The square root of 145915979 is about 12079.5686595176. The cubic root of 145915979 is about 526.4627133607.

The spelling of 145915979 in words is "one hundred forty-five million, nine hundred fifteen thousand, nine hundred seventy-nine".