102039841 has 4 divisors (see below), whose sum is σ = 102062272. Its totient is φ = 102017412.

The previous prime is 102039767. The next prime is 102039853. The reversal of 102039841 is 148930201.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 102039841 - 2⁷ = 102039713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102039241) 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, 1701 + ... + 14386.

It is an arithmetic number, because the mean of its divisors is an integer number (25515568).

Almost surely, 2^102039841 is an apocalyptic number.

It is an amenable number.

102039841 is a deficient number, since it is larger than the sum of its proper divisors (22431).

102039841 is an equidigital number, since it uses as much as digits as its factorization.

102039841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22430.

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 102039841 is about 10101.4771692065. The cubic root of 102039841 is about 467.2936983314.

The spelling of 102039841 in words is "one hundred two million, thirty-nine thousand, eight hundred forty-one".