47142148 has 12 divisors (see below), whose sum is σ = 82588492. Its totient is φ = 23545440.

The previous prime is 47142133. The next prime is 47142149. The reversal of 47142148 is 84124174.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 23503104 + 23639044 = 4848^2 + 4862^2 .

It is not an unprimeable number, because it can be changed into a prime (47142149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1923 + ... + 9898.

Almost surely, 2^47142148 is an apocalyptic number.

It is an amenable number.

47142148 is a deficient number, since it is larger than the sum of its proper divisors (35446344).

47142148 is a wasteful number, since it uses less digits than its factorization.

47142148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12822 (or 12820 counting only the distinct ones).

The product of its digits is 7168, while the sum is 31.

The square root of 47142148 is about 6866.0139819258. The cubic root of 47142148 is about 361.2460627038.

The spelling of 47142148 in words is "forty-seven million, one hundred forty-two thousand, one hundred forty-eight".