423142997 has 2 divisors, whose sum is σ = 423142998. Its totient is φ = 423142996.

The previous prime is 423142991. The next prime is 423143009. The reversal of 423142997 is 799241324.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 264030001 + 159112996 = 16249^2 + 12614^2 .

It is a cyclic number.

It is not a de Polignac number, because 423142997 - 2¹⁶ = 423077461 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 (423142991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211571498 + 211571499.

It is an arithmetic number, because the mean of its divisors is an integer number (211571499).

Almost surely, 2^423142997 is an apocalyptic number.

It is an amenable number.

423142997 is a deficient number, since it is larger than the sum of its proper divisors (1).

423142997 is an equidigital number, since it uses as much as digits as its factorization.

423142997 is an evil number, because the sum of its binary digits is even.

The product of its digits is 108864, while the sum is 41.

The square root of 423142997 is about 20570.4398834833. The cubic root of 423142997 is about 750.7506540703.

The spelling of 423142997 in words is "four hundred twenty-three million, one hundred forty-two thousand, nine hundred ninety-seven".