102153661 has 8 divisors (see below), whose sum is σ = 103773600. Its totient is φ = 100543152.

The previous prime is 102153659. The next prime is 102153683. The reversal of 102153661 is 166351201.

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

It is a cyclic number.

It is not a de Polignac number, because 102153661 - 2¹ = 102153659 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102153641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21315 + ... + 25663.

It is an arithmetic number, because the mean of its divisors is an integer number (12971700).

Almost surely, 2^102153661 is an apocalyptic number.

It is an amenable number.

102153661 is a deficient number, since it is larger than the sum of its proper divisors (1619939).

102153661 is an equidigital number, since it uses as much as digits as its factorization.

102153661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4715.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 102153661 is about 10107.1094285161. The cubic root of 102153661 is about 467.4673808349.

The spelling of 102153661 in words is "one hundred two million, one hundred fifty-three thousand, six hundred sixty-one".