422140007 has 2 divisors, whose sum is σ = 422140008. Its totient is φ = 422140006.

The previous prime is 422140003. The next prime is 422140013. The reversal of 422140007 is 700041224.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 422140007 - 2² = 422140003 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (422140003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211070003 + 211070004.

It is an arithmetic number, because the mean of its divisors is an integer number (211070004).

Almost surely, 2^422140007 is an apocalyptic number.

422140007 is a deficient number, since it is larger than the sum of its proper divisors (1).

422140007 is an equidigital number, since it uses as much as digits as its factorization.

422140007 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 448, while the sum is 20.

The square root of 422140007 is about 20546.0460186382. The cubic root of 422140007 is about 750.1570083141.

The spelling of 422140007 in words is "four hundred twenty-two million, one hundred forty thousand, seven".