145532724 has 24 divisors (see below), whose sum is σ = 350531328. Its totient is φ = 46945920.

The previous prime is 145532687. The next prime is 145532731. The reversal of 145532724 is 427235541.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 195237 + ... + 195980.

It is an arithmetic number, because the mean of its divisors is an integer number (14605472).

Almost surely, 2^145532724 is an apocalyptic number.

It is an amenable number.

145532724 is an abundant number, since it is smaller than the sum of its proper divisors (204998604).

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

145532724 is a wasteful number, since it uses less digits than its factorization.

145532724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 391255 (or 391253 counting only the distinct ones).

The product of its digits is 33600, while the sum is 33.

The square root of 145532724 is about 12063.6944589956. The cubic root of 145532724 is about 526.0013830822.

The spelling of 145532724 in words is "one hundred forty-five million, five hundred thirty-two thousand, seven hundred twenty-four".