145388232 has 48 divisors (see below), whose sum is σ = 429558480. Its totient is φ = 44056800.

The previous prime is 145388231. The next prime is 145388237. The reversal of 145388232 is 232883541.

145388232 is a `hidden beast` number, since 1 + 45 + 388 + 232 = 666.

It is a super-2 number, since 2×145388232² = 42275476008171648, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (145388231) 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, 90994 + ... + 92577.

It is an arithmetic number, because the mean of its divisors is an integer number (8949135).

Almost surely, 2^145388232 is an apocalyptic number.

145388232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

145388232 is an abundant number, since it is smaller than the sum of its proper divisors (284170248).

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

145388232 is a wasteful number, since it uses less digits than its factorization.

145388232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183594 (or 183587 counting only the distinct ones).

The product of its digits is 46080, while the sum is 36.

The square root of 145388232 is about 12057.7042591034. The cubic root of 145388232 is about 525.8272454798.

The spelling of 145388232 in words is "one hundred forty-five million, three hundred eighty-eight thousand, two hundred thirty-two".