145729132 has 6 divisors (see below), whose sum is σ = 255025988. Its totient is φ = 72864564.

The previous prime is 145729063. The next prime is 145729139. The reversal of 145729132 is 231927541.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (145729139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18216138 + ... + 18216145.

Almost surely, 2^145729132 is an apocalyptic number.

It is an amenable number.

145729132 is a deficient number, since it is larger than the sum of its proper divisors (109296856).

145729132 is a wasteful number, since it uses less digits than its factorization.

145729132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36432287 (or 36432285 counting only the distinct ones).

The product of its digits is 15120, while the sum is 34.

The square root of 145729132 is about 12071.8321724583. The cubic root of 145729132 is about 526.2379036306.

The spelling of 145729132 in words is "one hundred forty-five million, seven hundred twenty-nine thousand, one hundred thirty-two".