404255101 has 2 divisors, whose sum is σ = 404255102. Its totient is φ = 404255100.

The previous prime is 404255021. The next prime is 404255143. The reversal of 404255101 is 101552404.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 233325625 + 170929476 = 15275^2 + 13074^2 .

It is a cyclic number.

It is not a de Polignac number, because 404255101 - 2¹⁵ = 404222333 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (404255161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202127550 + 202127551.

It is an arithmetic number, because the mean of its divisors is an integer number (202127551).

Almost surely, 2^404255101 is an apocalyptic number.

It is an amenable number.

404255101 is a deficient number, since it is larger than the sum of its proper divisors (1).

404255101 is an equidigital number, since it uses as much as digits as its factorization.

404255101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 404255101 is about 20106.0961153577. The cubic root of 404255101 is about 739.4097441888.

The spelling of 404255101 in words is "four hundred four million, two hundred fifty-five thousand, one hundred one".