39311149 has 2 divisors, whose sum is σ = 39311150. Its totient is φ = 39311148.

The previous prime is 39311147. The next prime is 39311161. The reversal of 39311149 is 94111393.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 33988900 + 5322249 = 5830^2 + 2307^2 .

It is a cyclic number.

It is not a de Polignac number, because 39311149 - 2¹ = 39311147 is a prime.

Together with 39311147, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 39311149.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (39311143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19655574 + 19655575.

It is an arithmetic number, because the mean of its divisors is an integer number (19655575).

Almost surely, 2^39311149 is an apocalyptic number.

It is an amenable number.

39311149 is a deficient number, since it is larger than the sum of its proper divisors (1).

39311149 is an equidigital number, since it uses as much as digits as its factorization.

39311149 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2916, while the sum is 31.

The square root of 39311149 is about 6269.8603652713. The cubic root of 39311149 is about 340.0206129371.

The spelling of 39311149 in words is "thirty-nine million, three hundred eleven thousand, one hundred forty-nine".