39137145 has 32 divisors (see below), whose sum is σ = 69196032. Its totient is φ = 18788352.

The previous prime is 39137143. The next prime is 39137233. The reversal of 39137145 is 54173193.

It is not a de Polignac number, because 39137145 - 2¹ = 39137143 is a prime.

It is a super-2 number, since 2×39137145² = 3063432237502050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (39137143) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2529 + ... + 9201.

It is an arithmetic number, because the mean of its divisors is an integer number (2162376).

Almost surely, 2^39137145 is an apocalyptic number.

It is an amenable number.

39137145 is a deficient number, since it is larger than the sum of its proper divisors (30058887).

39137145 is a wasteful number, since it uses less digits than its factorization.

39137145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6721.

The product of its digits is 11340, while the sum is 33.

The square root of 39137145 is about 6255.9687499219. The cubic root of 39137145 is about 339.5181901045.

The spelling of 39137145 in words is "thirty-nine million, one hundred thirty-seven thousand, one hundred forty-five".