422152123 has 2 divisors, whose sum is σ = 422152124. Its totient is φ = 422152122.

The previous prime is 422152117. The next prime is 422152163. The reversal of 422152123 is 321251224.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-422152123 is a prime.

It is equal to p_22453024 and since 422152123 and 22453024 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 422152094 and 422152103.

It is not a weakly prime, because it can be changed into another prime (422152163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211076061 + 211076062.

It is an arithmetic number, because the mean of its divisors is an integer number (211076062).

Almost surely, 2^422152123 is an apocalyptic number.

422152123 is a deficient number, since it is larger than the sum of its proper divisors (1).

422152123 is an equidigital number, since it uses as much as digits as its factorization.

422152123 is an evil number, because the sum of its binary digits is even.

The product of its digits is 960, while the sum is 22.

The square root of 422152123 is about 20546.3408664414. The cubic root of 422152123 is about 750.1641850921.

The spelling of 422152123 in words is "four hundred twenty-two million, one hundred fifty-two thousand, one hundred twenty-three".