210401601 has 4 divisors (see below), whose sum is σ = 280535472. Its totient is φ = 140267732.

The previous prime is 210401579. The next prime is 210401603. The reversal of 210401601 is 106104012.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 210401601 - 2⁹ = 210401089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (210401603) 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, 35066931 + ... + 35066936.

It is an arithmetic number, because the mean of its divisors is an integer number (70133868).

Almost surely, 2^210401601 is an apocalyptic number.

It is an amenable number.

210401601 is a deficient number, since it is larger than the sum of its proper divisors (70133871).

210401601 is an equidigital number, since it uses as much as digits as its factorization.

210401601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70133870.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 210401601 is about 14505.2266786838. The cubic root of 210401601 is about 594.7708563777.

Adding to 210401601 its reverse (106104012), we get a palindrome (316505613).

The spelling of 210401601 in words is "two hundred ten million, four hundred one thousand, six hundred one".