42312545 has 8 divisors (see below), whose sum is σ = 55391040. Its totient is φ = 30772720.

The previous prime is 42312539. The next prime is 42312553. The reversal of 42312545 is 54521324.

It is a happy number.

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

It is not a de Polignac number, because 42312545 - 2⁶ = 42312481 is a prime.

It is a Curzon number.

It is an unprimeable number.

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, 384605 + ... + 384714.

It is an arithmetic number, because the mean of its divisors is an integer number (6923880).

Almost surely, 2^42312545 is an apocalyptic number.

It is an amenable number.

42312545 is a deficient number, since it is larger than the sum of its proper divisors (13078495).

42312545 is a wasteful number, since it uses less digits than its factorization.

42312545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 769335.

The product of its digits is 4800, while the sum is 26.

The square root of 42312545 is about 6504.8093746089. The cubic root of 42312545 is about 348.4627684290.

Adding to 42312545 its reverse (54521324), we get a palindrome (96833869).

It can be divided in two parts, 4231 and 2545, that added together give a palindrome (6776).

The spelling of 42312545 in words is "forty-two million, three hundred twelve thousand, five hundred forty-five".