267401 has 2 divisors, whose sum is σ = 267402. Its totient is φ = 267400.

The previous prime is 267391. The next prime is 267403. The reversal of 267401 is 104762.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 141376 + 126025 = 376^2 + 355^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-267401 is a prime.

Together with 267403, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (267403) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 133700 + 133701.

It is an arithmetic number, because the mean of its divisors is an integer number (133701).

2²⁶⁷⁴⁰¹ is an apocalyptic number.

It is an amenable number.

267401 is a deficient number, since it is larger than the sum of its proper divisors (1).

267401 is an equidigital number, since it uses as much as digits as its factorization.

267401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 267401 is about 517.1083058702. The cubic root of 267401 is about 64.4249874101.

The spelling of 267401 in words is "two hundred sixty-seven thousand, four hundred one".