145174724 has 12 divisors (see below), whose sum is σ = 255996048. Its totient is φ = 72033000.

The previous prime is 145174703. The next prime is 145174739. The reversal of 145174724 is 427471541.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 138002 + ... + 139049.

It is an arithmetic number, because the mean of its divisors is an integer number (21333004).

Almost surely, 2^145174724 is an apocalyptic number.

It is an amenable number.

145174724 is a deficient number, since it is larger than the sum of its proper divisors (110821324).

145174724 is a wasteful number, since it uses less digits than its factorization.

145174724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277186 (or 277184 counting only the distinct ones).

The product of its digits is 31360, while the sum is 35.

The square root of 145174724 is about 12048.8474137571. The cubic root of 145174724 is about 525.5697204528.

The spelling of 145174724 in words is "one hundred forty-five million, one hundred seventy-four thousand, seven hundred twenty-four".