267642461 has 2 divisors, whose sum is σ = 267642462. Its totient is φ = 267642460.

The previous prime is 267642413. The next prime is 267642481. The reversal of 267642461 is 164246762.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 266701561 + 940900 = 16331^2 + 970^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-267642461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (267642481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 133821230 + 133821231.

It is an arithmetic number, because the mean of its divisors is an integer number (133821231).

Almost surely, 2^267642461 is an apocalyptic number.

It is an amenable number.

267642461 is a deficient number, since it is larger than the sum of its proper divisors (1).

267642461 is an equidigital number, since it uses as much as digits as its factorization.

267642461 is an evil number, because the sum of its binary digits is even.

The product of its digits is 96768, while the sum is 38.

The square root of 267642461 is about 16359.7818139485. The cubic root of 267642461 is about 644.4437332852.

The spelling of 267642461 in words is "two hundred sixty-seven million, six hundred forty-two thousand, four hundred sixty-one".