102051001 has 4 divisors (see below), whose sum is σ = 109901092. Its totient is φ = 94200912.

The previous prime is 102050969. The next prime is 102051011. The reversal of 102051001 is 100150201.

It is a happy number.

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 33177600 + 68873401 = 5760^2 + 8299^2 .

It is not a de Polignac number, because 102051001 - 2⁵ = 102050969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102051011) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 3925026 + ... + 3925051.

It is an arithmetic number, because the mean of its divisors is an integer number (27475273).

Almost surely, 2^102051001 is an apocalyptic number.

It is an amenable number.

102051001 is a deficient number, since it is larger than the sum of its proper divisors (7850091).

102051001 is an equidigital number, since it uses as much as digits as its factorization.

102051001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7850090.

The product of its (nonzero) digits is 10, while the sum is 10.

The square root of 102051001 is about 10102.0295485610. The cubic root of 102051001 is about 467.3107335323.

The spelling of 102051001 in words is "one hundred two million, fifty-one thousand, one".