202101401 has 4 divisors (see below), whose sum is σ = 202138404. Its totient is φ = 202064400.

The previous prime is 202101397. The next prime is 202101421. The reversal of 202101401 is 104101202.

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 118287376 + 83814025 = 10876^2 + 9155^2 .

It is a cyclic number.

It is not a de Polignac number, because 202101401 - 2² = 202101397 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (202101421) 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, 8510 + ... + 21831.

It is an arithmetic number, because the mean of its divisors is an integer number (50534601).

Almost surely, 2^202101401 is an apocalyptic number.

It is an amenable number.

202101401 is a deficient number, since it is larger than the sum of its proper divisors (37003).

202101401 is an equidigital number, since it uses as much as digits as its factorization.

202101401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37002.

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 202101401 is about 14216.2372307162. The cubic root of 202101401 is about 586.8445937521.

Adding to 202101401 its reverse (104101202), we get a palindrome (306202603).

The spelling of 202101401 in words is "two hundred two million, one hundred one thousand, four hundred one".