39102101 has 4 divisors (see below), whose sum is σ = 39116652. Its totient is φ = 39087552.

The previous prime is 39102097. The next prime is 39102103. The reversal of 39102101 is 10120193.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10120193 = 211 ⋅47963.

It can be written as a sum of positive squares in 2 ways, for example, as 5635876 + 33466225 = 2374^2 + 5785^2 .

It is a cyclic number.

It is not a de Polignac number, because 39102101 - 2² = 39102097 is a prime.

It is a super-2 number, since 2×39102101² = 3057948605228402, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 39102101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39102103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1940 + ... + 9053.

It is an arithmetic number, because the mean of its divisors is an integer number (9779163).

Almost surely, 2^39102101 is an apocalyptic number.

It is an amenable number.

39102101 is a deficient number, since it is larger than the sum of its proper divisors (14551).

39102101 is a wasteful number, since it uses less digits than its factorization.

39102101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14550.

The product of its (nonzero) digits is 54, while the sum is 17.

The square root of 39102101 is about 6253.1672774683. The cubic root of 39102101 is about 339.4168232448.

Adding to 39102101 its reverse (10120193), we get a palindrome (49222294).

The spelling of 39102101 in words is "thirty-nine million, one hundred two thousand, one hundred one".