39102061 has 4 divisors (see below), whose sum is σ = 39541500. Its totient is φ = 38662624.

The previous prime is 39102017. The next prime is 39102079. The reversal of 39102061 is 16020193.

39102061 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2499561 + 36602500 = 1581^2 + 6050^2 .

It is a cyclic number.

It is not a de Polignac number, because 39102061 - 2¹⁷ = 38970989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39102761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 219586 + ... + 219763.

It is an arithmetic number, because the mean of its divisors is an integer number (9885375).

Almost surely, 2^39102061 is an apocalyptic number.

39102061 is the 2797-th centered decagonal number.

It is an amenable number.

39102061 is a deficient number, since it is larger than the sum of its proper divisors (439439).

39102061 is an equidigital number, since it uses as much as digits as its factorization.

39102061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 439438.

The product of its (nonzero) digits is 324, while the sum is 22.

The square root of 39102061 is about 6253.1640790883. The cubic root of 39102061 is about 339.4167075078.

The spelling of 39102061 in words is "thirty-nine million, one hundred two thousand, sixty-one".