2102074801 has 4 divisors (see below), whose sum is σ = 2102168932. Its totient is φ = 2101980672.

The previous prime is 2102074783. The next prime is 2102074829. The reversal of 2102074801 is 1084702012.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 1948339600 + 153735201 = 44140^2 + 12399^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2102074801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2102074841) 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, 7585 + ... + 65281.

It is an arithmetic number, because the mean of its divisors is an integer number (525542233).

Almost surely, 2^2102074801 is an apocalyptic number.

It is an amenable number.

2102074801 is a deficient number, since it is larger than the sum of its proper divisors (94131).

2102074801 is an equidigital number, since it uses as much as digits as its factorization.

2102074801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94130.

The product of its (nonzero) digits is 896, while the sum is 25.

The square root of 2102074801 is about 45848.3892955903. The cubic root of 2102074801 is about 1281.0007637796. Note that the first 3 decimals are identical.

Adding to 2102074801 its reverse (1084702012), we get a palindrome (3186776813).

The spelling of 2102074801 in words is "two billion, one hundred two million, seventy-four thousand, eight hundred one".