423137291 has 8 divisors (see below), whose sum is σ = 434846160. Its totient is φ = 411442848.

The previous prime is 423137263. The next prime is 423137303. The reversal of 423137291 is 192731324.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 423137291 - 2²² = 418942987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (423137791) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86000 + ... + 90786.

It is an arithmetic number, because the mean of its divisors is an integer number (54355770).

Almost surely, 2^423137291 is an apocalyptic number.

423137291 is a deficient number, since it is larger than the sum of its proper divisors (11708869).

423137291 is a wasteful number, since it uses less digits than its factorization.

423137291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7213.

The product of its digits is 9072, while the sum is 32.

The square root of 423137291 is about 20570.3011888499. The cubic root of 423137291 is about 750.7472794802.

The spelling of 423137291 in words is "four hundred twenty-three million, one hundred thirty-seven thousand, two hundred ninety-one".