571161401 has 2 divisors, whose sum is σ = 571161402. Its totient is φ = 571161400.

The previous prime is 571161379. The next prime is 571161431. The reversal of 571161401 is 104161175.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 500685376 + 70476025 = 22376^2 + 8395^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-571161401 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (571161431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 285580700 + 285580701.

It is an arithmetic number, because the mean of its divisors is an integer number (285580701).

Almost surely, 2^571161401 is an apocalyptic number.

It is an amenable number.

571161401 is a deficient number, since it is larger than the sum of its proper divisors (1).

571161401 is an equidigital number, since it uses as much as digits as its factorization.

571161401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 840, while the sum is 26.

The square root of 571161401 is about 23898.9832628922. The cubic root of 571161401 is about 829.6971852242.

The spelling of 571161401 in words is "five hundred seventy-one million, one hundred sixty-one thousand, four hundred one".