145258685 has 64 divisors (see below), whose sum is σ = 218405376. Its totient is φ = 91998720.

The previous prime is 145258627. The next prime is 145258697. The reversal of 145258685 is 586852541.

145258685 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 145258685 - 2¹² = 145254589 is a prime.

It is a super-2 number, since 2×145258685² = 42200171135858450, which contains 22 as substring.

It is a Duffinian number.

Its product of digits (384000) is a multiple of the sum of its prime divisors (125).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1989809 + ... + 1989881.

It is an arithmetic number, because the mean of its divisors is an integer number (3412584).

Almost surely, 2^145258685 is an apocalyptic number.

It is an amenable number.

145258685 is a deficient number, since it is larger than the sum of its proper divisors (73146691).

145258685 is a wasteful number, since it uses less digits than its factorization.

145258685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147 (or 125 counting only the distinct ones).

The product of its digits is 384000, while the sum is 44.

The square root of 145258685 is about 12052.3311023221. The cubic root of 145258685 is about 525.6710210416.

The spelling of 145258685 in words is "one hundred forty-five million, two hundred fifty-eight thousand, six hundred eighty-five".