101789641 has 4 divisors (see below), whose sum is σ = 101913552. Its totient is φ = 101665732.

The previous prime is 101789621. The next prime is 101789711. The reversal of 101789641 is 146987101.

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 a de Polignac number, because none of the positive numbers 2^k-101789641 is a prime.

It is a super-2 number, since 2×101789641² = 20722262029817762, 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 101789641.

It is not an unprimeable number, because it can be changed into a prime (101789621) 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, 60715 + ... + 62368.

It is an arithmetic number, because the mean of its divisors is an integer number (25478388).

Almost surely, 2^101789641 is an apocalyptic number.

It is an amenable number.

101789641 is a deficient number, since it is larger than the sum of its proper divisors (123911).

101789641 is an equidigital number, since it uses as much as digits as its factorization.

101789641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123910.

The product of its (nonzero) digits is 12096, while the sum is 37.

The square root of 101789641 is about 10089.0852409919. The cubic root of 101789641 is about 466.9114536056.

The spelling of 101789641 in words is "one hundred one million, seven hundred eighty-nine thousand, six hundred forty-one".