47145842 has 8 divisors (see below), whose sum is σ = 70749936. Its totient is φ = 23562532.

The previous prime is 47145817. The next prime is 47145853. The reversal of 47145842 is 24854174.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3173 + ... + 10215.

It is an arithmetic number, because the mean of its divisors is an integer number (8843742).

Almost surely, 2^47145842 is an apocalyptic number.

47145842 is a deficient number, since it is larger than the sum of its proper divisors (23604094).

47145842 is a wasteful number, since it uses less digits than its factorization.

47145842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10392.

The product of its digits is 35840, while the sum is 35.

The square root of 47145842 is about 6866.2829828081. The cubic root of 47145842 is about 361.2554980545.

The spelling of 47145842 in words is "forty-seven million, one hundred forty-five thousand, eight hundred forty-two".