39023145 has 72 divisors (see below), whose sum is σ = 80323776. Its totient is φ = 17164224.

The previous prime is 39023129. The next prime is 39023147. The reversal of 39023145 is 54132093.

39023145 is a `hidden beast` number, since 390 + 231 + 45 = 666.

It is not a de Polignac number, because 39023145 - 2⁴ = 39023129 is a prime.

It is not an unprimeable number, because it can be changed into a prime (39023147) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 582402 + ... + 582468.

It is an arithmetic number, because the mean of its divisors is an integer number (1115608).

Almost surely, 2^39023145 is an apocalyptic number.

39023145 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

39023145 is an abundant number, since it is smaller than the sum of its proper divisors (41300631).

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

39023145 is a wasteful number, since it uses less digits than its factorization.

39023145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171 (or 125 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 39023145 is about 6246.8508066065. The cubic root of 39023145 is about 339.1882161537.

The spelling of 39023145 in words is "thirty-nine million, twenty-three thousand, one hundred forty-five".