145845724 has 24 divisors (see below), whose sum is σ = 258930000. Its totient is φ = 71871360.

The previous prime is 145845697. The next prime is 145845757. The reversal of 145845724 is 427548541.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 177234 + ... + 178054.

It is an arithmetic number, because the mean of its divisors is an integer number (10788750).

Almost surely, 2^145845724 is an apocalyptic number.

It is an amenable number.

145845724 is a deficient number, since it is larger than the sum of its proper divisors (113084276).

145845724 is a wasteful number, since it uses less digits than its factorization.

145845724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1413 (or 1411 counting only the distinct ones).

The product of its digits is 179200, while the sum is 40.

The square root of 145845724 is about 12076.6602999339. The cubic root of 145845724 is about 526.3782067932.

The spelling of 145845724 in words is "one hundred forty-five million, eight hundred forty-five thousand, seven hundred twenty-four".