47545142 has 4 divisors (see below), whose sum is σ = 71317716. Its totient is φ = 23772570.

The previous prime is 47545097. The next prime is 47545151. The reversal of 47545142 is 24154574.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24154574 = 2 ⋅12077287.

It is a junction number, because it is equal to n+sod(n) for n = 47545099 and 47545108.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11886284 + ... + 11886287.

It is an arithmetic number, because the mean of its divisors is an integer number (17829429).

Almost surely, 2^47545142 is an apocalyptic number.

47545142 is a deficient number, since it is larger than the sum of its proper divisors (23772574).

47545142 is a wasteful number, since it uses less digits than its factorization.

47545142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23772573.

The product of its digits is 22400, while the sum is 32.

The square root of 47545142 is about 6895.2985432104. The cubic root of 47545142 is about 362.2725123627.

The spelling of 47545142 in words is "forty-seven million, five hundred forty-five thousand, one hundred forty-two".