102857206 has 8 divisors (see below), whose sum is σ = 157197024. Its totient is φ = 50458200.

The previous prime is 102857201. The next prime is 102857207. The reversal of 102857206 is 602758201.

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

It is a super-2 number, since 2×102857206² = 21159209652252872, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102857201) 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, 485070 + ... + 485281.

It is an arithmetic number, because the mean of its divisors is an integer number (19649628).

Almost surely, 2^102857206 is an apocalyptic number.

102857206 is a deficient number, since it is larger than the sum of its proper divisors (54339818).

102857206 is an equidigital number, since it uses as much as digits as its factorization.

102857206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 970406.

The product of its (nonzero) digits is 6720, while the sum is 31.

The square root of 102857206 is about 10141.8541697266. The cubic root of 102857206 is about 468.5380952482.

The spelling of 102857206 in words is "one hundred two million, eight hundred fifty-seven thousand, two hundred six".