145578132 has 72 divisors (see below), whose sum is σ = 438861696. Its totient is φ = 39783744.

The previous prime is 145578131. The next prime is 145578137. The reversal of 145578132 is 231875541.

145578132 is a `hidden beast` number, since 1 + 455 + 78 + 132 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145578131) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6763 + ... + 18354.

Almost surely, 2^145578132 is an apocalyptic number.

145578132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

145578132 is an abundant number, since it is smaller than the sum of its proper divisors (293283564).

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

145578132 is a wasteful number, since it uses less digits than its factorization.

145578132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25157 (or 25152 counting only the distinct ones).

The product of its digits is 33600, while the sum is 36.

The square root of 145578132 is about 12065.5763227456. The cubic root of 145578132 is about 526.0560836941.

The spelling of 145578132 in words is "one hundred forty-five million, five hundred seventy-eight thousand, one hundred thirty-two".