102057806 has 4 divisors (see below), whose sum is σ = 153086712. Its totient is φ = 51028902.

The previous prime is 102057799. The next prime is 102057811. The reversal of 102057806 is 608750201.

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

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 25514450 + ... + 25514453.

It is an arithmetic number, because the mean of its divisors is an integer number (38271678).

Almost surely, 2^102057806 is an apocalyptic number.

102057806 is a deficient number, since it is larger than the sum of its proper divisors (51028906).

102057806 is an equidigital number, since it uses as much as digits as its factorization.

102057806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51028905.

The product of its (nonzero) digits is 3360, while the sum is 29.

The square root of 102057806 is about 10102.3663564533. The cubic root of 102057806 is about 467.3211204265.

The spelling of 102057806 in words is "one hundred two million, fifty-seven thousand, eight hundred six".