423126251 has 2 divisors, whose sum is σ = 423126252. Its totient is φ = 423126250.

The previous prime is 423126227. The next prime is 423126271. The reversal of 423126251 is 152621324.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-423126251 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 423126251.

It is not a weakly prime, because it can be changed into another prime (423126271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211563125 + 211563126.

It is an arithmetic number, because the mean of its divisors is an integer number (211563126).

Almost surely, 2^423126251 is an apocalyptic number.

423126251 is a deficient number, since it is larger than the sum of its proper divisors (1).

423126251 is an equidigital number, since it uses as much as digits as its factorization.

423126251 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2880, while the sum is 26.

The square root of 423126251 is about 20570.0328390598. The cubic root of 423126251 is about 750.7407502187.

Adding to 423126251 its reverse (152621324), we get a palindrome (575747575).

The spelling of 423126251 in words is "four hundred twenty-three million, one hundred twenty-six thousand, two hundred fifty-one".