102851801 has 4 divisors (see below), whose sum is σ = 110763492. Its totient is φ = 94940112.

The previous prime is 102851797. The next prime is 102851813. The reversal of 102851801 is 108158201.

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

It can be written as a sum of positive squares in 2 ways, for example, as 47334400 + 55517401 = 6880^2 + 7451^2 .

It is a cyclic number.

It is not a de Polignac number, because 102851801 - 2² = 102851797 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102851891) 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, 3955826 + ... + 3955851.

It is an arithmetic number, because the mean of its divisors is an integer number (27690873).

Almost surely, 2^102851801 is an apocalyptic number.

It is an amenable number.

102851801 is a deficient number, since it is larger than the sum of its proper divisors (7911691).

102851801 is an equidigital number, since it uses as much as digits as its factorization.

102851801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7911690.

The product of its (nonzero) digits is 640, while the sum is 26.

The square root of 102851801 is about 10141.5876962140. The cubic root of 102851801 is about 468.5298881007.

The spelling of 102851801 in words is "one hundred two million, eight hundred fifty-one thousand, eight hundred one".