102100641 has 8 divisors (see below), whose sum is σ = 138366144. Its totient is φ = 66951120.

The previous prime is 102100637. The next prime is 102100651. The reversal of 102100641 is 146001201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 102100641 - 2² = 102100637 is a prime.

It is a super-2 number, since 2×102100641² = 20849081785221762, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 102100641.

It is not an unprimeable number, because it can be changed into a prime (102100601) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 278781 + ... + 279146.

It is an arithmetic number, because the mean of its divisors is an integer number (17295768).

Almost surely, 2^102100641 is an apocalyptic number.

It is an amenable number.

102100641 is a deficient number, since it is larger than the sum of its proper divisors (36265503).

102100641 is an equidigital number, since it uses as much as digits as its factorization.

102100641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 557991.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 102100641 is about 10104.4861818897. The cubic root of 102100641 is about 467.3864915499.

Adding to 102100641 its reverse (146001201), we get a palindrome (248101842).

The spelling of 102100641 in words is "one hundred two million, one hundred thousand, six hundred forty-one".