102056806 has 4 divisors (see below), whose sum is σ = 153085212. Its totient is φ = 51028402.

The previous prime is 102056791. The next prime is 102056807. The reversal of 102056806 is 608650201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 608650201 = 17 ⋅35802953.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102056807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25514200 + ... + 25514203.

It is an arithmetic number, because the mean of its divisors is an integer number (38271303).

Almost surely, 2^102056806 is an apocalyptic number.

102056806 is a deficient number, since it is larger than the sum of its proper divisors (51028406).

102056806 is an equidigital number, since it uses as much as digits as its factorization.

102056806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51028405.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 102056806 is about 10102.3168629775. The cubic root of 102056806 is about 467.3195940934.

The spelling of 102056806 in words is "one hundred two million, fifty-six thousand, eight hundred six".