423006137 has 4 divisors (see below), whose sum is σ = 423556980. Its totient is φ = 422455296.

The previous prime is 423006119. The next prime is 423006149. The reversal of 423006137 is 731600324.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 192543376 + 230462761 = 13876^2 + 15181^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-423006137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (423006187) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 274268 + ... + 275805.

It is an arithmetic number, because the mean of its divisors is an integer number (105889245).

Almost surely, 2^423006137 is an apocalyptic number.

It is an amenable number.

423006137 is a deficient number, since it is larger than the sum of its proper divisors (550843).

423006137 is an equidigital number, since it uses as much as digits as its factorization.

423006137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 550842.

The product of its (nonzero) digits is 3024, while the sum is 26.

The square root of 423006137 is about 20567.1129962375. The cubic root of 423006137 is about 750.6697052226.

The spelling of 423006137 in words is "four hundred twenty-three million, six thousand, one hundred thirty-seven".