102420086 has 16 divisors (see below), whose sum is σ = 156280320. Its totient is φ = 50330280.

The previous prime is 102420077. The next prime is 102420119. The reversal of 102420086 is 680024201.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 111971 + ... + 112881.

It is an arithmetic number, because the mean of its divisors is an integer number (9767520).

Almost surely, 2^102420086 is an apocalyptic number.

102420086 is a deficient number, since it is larger than the sum of its proper divisors (53860234).

102420086 is an equidigital number, since it uses as much as digits as its factorization.

102420086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1819.

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 102420086 is about 10120.2809249546. The cubic root of 102420086 is about 467.8734256039.

Adding to 102420086 its reverse (680024201), we get a palindrome (782444287).

The spelling of 102420086 in words is "one hundred two million, four hundred twenty thousand, eighty-six".