423151242539 has 4 divisors (see below), whose sum is σ = 423347057400. Its totient is φ = 422955427680.

The previous prime is 423151242517. The next prime is 423151242617. The reversal of 423151242539 is 935242151324.

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

It is a cyclic number.

It is not a de Polignac number, because 423151242539 - 2³⁶ = 354431765803 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 423151242496 and 423151242505.

It is not an unprimeable number, because it can be changed into a prime (423151242509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 97904189 + ... + 97908510.

It is an arithmetic number, because the mean of its divisors is an integer number (105836764350).

Almost surely, 2^423151242539 is an apocalyptic number.

423151242539 is a deficient number, since it is larger than the sum of its proper divisors (195814861).

423151242539 is a wasteful number, since it uses less digits than its factorization.

423151242539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195814860.

The product of its digits is 259200, while the sum is 41.

The spelling of 423151242539 in words is "four hundred twenty-three billion, one hundred fifty-one million, two hundred forty-two thousand, five hundred thirty-nine".