145766917 has 16 divisors (see below), whose sum is σ = 155944960. Its totient is φ = 135862272.

The previous prime is 145766869. The next prime is 145766921. The reversal of 145766917 is 719667541.

It is a cyclic number.

It is not a de Polignac number, because 145766917 - 2²⁷ = 11549189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145766927) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 465553 + ... + 465865.

It is an arithmetic number, because the mean of its divisors is an integer number (9746560).

Almost surely, 2^145766917 is an apocalyptic number.

It is an amenable number.

145766917 is a deficient number, since it is larger than the sum of its proper divisors (10178043).

145766917 is a wasteful number, since it uses less digits than its factorization.

145766917 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 652.

The product of its digits is 317520, while the sum is 46.

The square root of 145766917 is about 12073.3970778733. The cubic root of 145766917 is about 526.2833811103.

The spelling of 145766917 in words is "one hundred forty-five million, seven hundred sixty-six thousand, nine hundred seventeen".