102047179 has 4 divisors (see below), whose sum is σ = 109896976. Its totient is φ = 94197384.

The previous prime is 102047177. The next prime is 102047191. The reversal of 102047179 is 971740201.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 102047179 - 2¹ = 102047177 is a prime.

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 102047179.

It is not an unprimeable number, because it can be changed into a prime (102047171) 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, 3924879 + ... + 3924904.

It is an arithmetic number, because the mean of its divisors is an integer number (27474244).

Almost surely, 2^102047179 is an apocalyptic number.

102047179 is a deficient number, since it is larger than the sum of its proper divisors (7849797).

102047179 is an equidigital number, since it uses as much as digits as its factorization.

102047179 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7849796.

The product of its (nonzero) digits is 3528, while the sum is 31.

The square root of 102047179 is about 10101.8403768818. The cubic root of 102047179 is about 467.3048995738.

The spelling of 102047179 in words is "one hundred two million, forty-seven thousand, one hundred seventy-nine".