42967261 has 2 divisors, whose sum is σ = 42967262. Its totient is φ = 42967260.

The previous prime is 42967247. The next prime is 42967273. The reversal of 42967261 is 16276924.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 41024025 + 1943236 = 6405^2 + 1394^2 .

It is a cyclic number.

It is not a de Polignac number, because 42967261 - 2⁵ = 42967229 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42967261.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42967291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21483630 + 21483631.

It is an arithmetic number, because the mean of its divisors is an integer number (21483631).

Almost surely, 2^42967261 is an apocalyptic number.

It is an amenable number.

42967261 is a deficient number, since it is larger than the sum of its proper divisors (1).

42967261 is an equidigital number, since it uses as much as digits as its factorization.

42967261 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36288, while the sum is 37.

The square root of 42967261 is about 6554.9417236159. The cubic root of 42967261 is about 350.2508704800.

The spelling of 42967261 in words is "forty-two million, nine hundred sixty-seven thousand, two hundred sixty-one".