232013145 has 64 divisors (see below), whose sum is σ = 471711744. Its totient is φ = 94728960.

The previous prime is 232013143. The next prime is 232013179. The reversal of 232013145 is 541310232.

It is not a de Polignac number, because 232013145 - 2¹ = 232013143 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (232013141) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 39574 + ... + 45056.

It is an arithmetic number, because the mean of its divisors is an integer number (7370496).

Almost surely, 2^232013145 is an apocalyptic number.

It is an amenable number.

232013145 is an abundant number, since it is smaller than the sum of its proper divisors (239698599).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

232013145 is a wasteful number, since it uses less digits than its factorization.

232013145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5542.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 232013145 is about 15231.9777113808. The cubic root of 232013145 is about 614.4749699768.

Adding to 232013145 its reverse (541310232), we get a palindrome (773323377).

The spelling of 232013145 in words is "two hundred thirty-two million, thirteen thousand, one hundred forty-five".