145123532 has 12 divisors (see below), whose sum is σ = 254865576. Its totient is φ = 72304800.

The previous prime is 145123529. The next prime is 145123547. The reversal of 145123532 is 235321541.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62969 + ... + 65232.

It is an arithmetic number, because the mean of its divisors is an integer number (21238798).

Almost surely, 2^145123532 is an apocalyptic number.

It is an amenable number.

145123532 is a deficient number, since it is larger than the sum of its proper divisors (109742044).

145123532 is a wasteful number, since it uses less digits than its factorization.

145123532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128488 (or 128486 counting only the distinct ones).

The product of its digits is 3600, while the sum is 26.

The square root of 145123532 is about 12046.7228738774. The cubic root of 145123532 is about 525.5079371353.

The spelling of 145123532 in words is "one hundred forty-five million, one hundred twenty-three thousand, five hundred thirty-two".