39142965 has 16 divisors (see below), whose sum is σ = 63488448. Its totient is φ = 20589696.

The previous prime is 39142951. The next prime is 39142981. The reversal of 39142965 is 56924193.

It is not a de Polignac number, because 39142965 - 2⁴ = 39142949 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16779 + ... + 18968.

It is an arithmetic number, because the mean of its divisors is an integer number (3968028).

Almost surely, 2^39142965 is an apocalyptic number.

It is an amenable number.

39142965 is a deficient number, since it is larger than the sum of its proper divisors (24345483).

39142965 is a wasteful number, since it uses less digits than its factorization.

39142965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35828.

The product of its digits is 58320, while the sum is 39.

The square root of 39142965 is about 6256.4338884064. The cubic root of 39142965 is about 339.5350189418.

The spelling of 39142965 in words is "thirty-nine million, one hundred forty-two thousand, nine hundred sixty-five".