145874589 has 16 divisors (see below), whose sum is σ = 223005312. Its totient is φ = 83086848.

The previous prime is 145874587. The next prime is 145874621. The reversal of 145874589 is 985478541.

It is not a de Polignac number, because 145874589 - 2¹ = 145874587 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145874581) 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, 4524 + ... + 17669.

It is an arithmetic number, because the mean of its divisors is an integer number (13937832).

Almost surely, 2^145874589 is an apocalyptic number.

It is an amenable number.

145874589 is a deficient number, since it is larger than the sum of its proper divisors (77130723).

145874589 is a wasteful number, since it uses less digits than its factorization.

145874589 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22516.

The product of its digits is 1612800, while the sum is 51.

The square root of 145874589 is about 12077.8553145830. The cubic root of 145874589 is about 526.4129304822.

The spelling of 145874589 in words is "one hundred forty-five million, eight hundred seventy-four thousand, five hundred eighty-nine".