102359861 has 4 divisors (see below), whose sum is σ = 105661824. Its totient is φ = 99057900.

The previous prime is 102359849. The next prime is 102359893. The reversal of 102359861 is 168953201.

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 102359861 - 2¹⁸ = 102097717 is a prime.

It is a super-2 number, since 2×102359861² = 20955082287878642, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102353861) 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, 1650935 + ... + 1650996.

It is an arithmetic number, because the mean of its divisors is an integer number (26415456).

Almost surely, 2^102359861 is an apocalyptic number.

It is an amenable number.

102359861 is a deficient number, since it is larger than the sum of its proper divisors (3301963).

102359861 is an equidigital number, since it uses as much as digits as its factorization.

102359861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3301962.

The product of its (nonzero) digits is 12960, while the sum is 35.

The square root of 102359861 is about 10117.3050265375. The cubic root of 102359861 is about 467.7817014023.

The spelling of 102359861 in words is "one hundred two million, three hundred fifty-nine thousand, eight hundred sixty-one".