102126001 has 4 divisors (see below), whose sum is σ = 102176100. Its totient is φ = 102075904.

The previous prime is 102125993. The next prime is 102126019. The reversal of 102126001 is 100621201.

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 52056225 + 50069776 = 7215^2 + 7076^2 .

It is a cyclic number.

It is not a de Polignac number, because 102126001 - 2³ = 102125993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102126301) 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, 21856 + ... + 26113.

It is an arithmetic number, because the mean of its divisors is an integer number (25544025).

Almost surely, 2^102126001 is an apocalyptic number.

It is an amenable number.

102126001 is a deficient number, since it is larger than the sum of its proper divisors (50099).

102126001 is an equidigital number, since it uses as much as digits as its factorization.

102126001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50098.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 102126001 is about 10105.7409921292. The cubic root of 102126001 is about 467.4251852025.

Adding to 102126001 its reverse (100621201), we get a palindrome (202747202).

The spelling of 102126001 in words is "one hundred two million, one hundred twenty-six thousand, one".