39145252 has 12 divisors (see below), whose sum is σ = 68661936. Its totient is φ = 19527560.

The previous prime is 39145247. The next prime is 39145303. The reversal of 39145252 is 25254193.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9274 + ... + 12817.

It is an arithmetic number, because the mean of its divisors is an integer number (5721828).

Almost surely, 2^39145252 is an apocalyptic number.

It is an amenable number.

39145252 is a deficient number, since it is larger than the sum of its proper divisors (29516684).

39145252 is a wasteful number, since it uses less digits than its factorization.

39145252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22538 (or 22536 counting only the distinct ones).

The product of its digits is 10800, while the sum is 31.

The square root of 39145252 is about 6256.6166575874. The cubic root of 39145252 is about 339.5416314664.

The spelling of 39145252 in words is "thirty-nine million, one hundred forty-five thousand, two hundred fifty-two".