42312549 has 8 divisors (see below), whose sum is σ = 57617280. Its totient is φ = 27608096.

The previous prime is 42312539. The next prime is 42312553. The reversal of 42312549 is 94521324.

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 42312549 - 2⁹ = 42312037 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42312509) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 149904 + ... + 150185.

It is an arithmetic number, because the mean of its divisors is an integer number (7202160).

Almost surely, 2^42312549 is an apocalyptic number.

It is an amenable number.

42312549 is a deficient number, since it is larger than the sum of its proper divisors (15304731).

42312549 is a wasteful number, since it uses less digits than its factorization.

42312549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300139.

The product of its digits is 8640, while the sum is 30.

The square root of 42312549 is about 6504.8096820737. The cubic root of 42312549 is about 348.4627794096.

The spelling of 42312549 in words is "forty-two million, three hundred twelve thousand, five hundred forty-nine".