42945149 has 8 divisors (see below), whose sum is σ = 48683040. Its totient is φ = 37555056.

The previous prime is 42945139. The next prime is 42945167. The reversal of 42945149 is 94154924.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42945149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42945139) 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, 86687 + ... + 87180.

It is an arithmetic number, because the mean of its divisors is an integer number (6085380).

Almost surely, 2^42945149 is an apocalyptic number.

It is an amenable number.

42945149 is a deficient number, since it is larger than the sum of its proper divisors (5737891).

42945149 is a wasteful number, since it uses less digits than its factorization.

42945149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173899.

The product of its digits is 51840, while the sum is 38.

The square root of 42945149 is about 6553.2548401539. The cubic root of 42945149 is about 350.1907776249.

The spelling of 42945149 in words is "forty-two million, nine hundred forty-five thousand, one hundred forty-nine".