102288557 has 8 divisors (see below), whose sum is σ = 117143232. Its totient is φ = 87494400.

The previous prime is 102288547. The next prime is 102288581. The reversal of 102288557 is 755882201.

It is a happy number.

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

It is not a de Polignac number, because 102288557 - 2²² = 98094253 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 102288557.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102288517) 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 7 ways as a sum of consecutive naturals, for example, 11444 + ... + 18317.

It is an arithmetic number, because the mean of its divisors is an integer number (14642904).

Almost surely, 2^102288557 is an apocalyptic number.

It is an amenable number.

102288557 is a deficient number, since it is larger than the sum of its proper divisors (14854675).

102288557 is an equidigital number, since it uses as much as digits as its factorization.

102288557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30259.

The product of its (nonzero) digits is 44800, while the sum is 38.

The square root of 102288557 is about 10113.7805493297. The cubic root of 102288557 is about 467.6730570760.

The spelling of 102288557 in words is "one hundred two million, two hundred eighty-eight thousand, five hundred fifty-seven".