47052142 has 4 divisors (see below), whose sum is σ = 70578216. Its totient is φ = 23526070.

The previous prime is 47052121. The next prime is 47052143. The reversal of 47052142 is 24125074.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47052143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11763034 + ... + 11763037.

It is an arithmetic number, because the mean of its divisors is an integer number (17644554).

Almost surely, 2^47052142 is an apocalyptic number.

47052142 is a deficient number, since it is larger than the sum of its proper divisors (23526074).

47052142 is a wasteful number, since it uses less digits than its factorization.

47052142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23526073.

The product of its (nonzero) digits is 2240, while the sum is 25.

The square root of 47052142 is about 6859.4563924556. The cubic root of 47052142 is about 361.0160135928.

The spelling of 47052142 in words is "forty-seven million, fifty-two thousand, one hundred forty-two".