145715859 has 12 divisors (see below), whose sum is σ = 210592200. Its totient is φ = 97091424.

The previous prime is 145715849. The next prime is 145715881. The reversal of 145715859 is 958517541.

145715859 is a `hidden beast` number, since 14 + 57 + 1 + 585 + 9 = 666.

It is not a de Polignac number, because 145715859 - 2⁵ = 145715827 is a prime.

It is a super-2 number, since 2×145715859² = 42466223128215762, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (145715809) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20887 + ... + 26975.

It is an arithmetic number, because the mean of its divisors is an integer number (17549350).

Almost surely, 2^145715859 is an apocalyptic number.

145715859 is a deficient number, since it is larger than the sum of its proper divisors (64876341).

145715859 is a wasteful number, since it uses less digits than its factorization.

145715859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8754 (or 8751 counting only the distinct ones).

The product of its digits is 252000, while the sum is 45.

The square root of 145715859 is about 12071.2824090898. The cubic root of 145715859 is about 526.2219265740.

The spelling of 145715859 in words is "one hundred forty-five million, seven hundred fifteen thousand, eight hundred fifty-nine".