42147124 has 6 divisors (see below), whose sum is σ = 73757474. Its totient is φ = 21073560.

The previous prime is 42147113. The next prime is 42147191. The reversal of 42147124 is 42174124.

It can be written as a sum of positive squares in only one way, i.e., 22184100 + 19963024 = 4710^2 + 4468^2 .

It is a super-2 number, since 2×42147124² = 3552760122942752, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5268387 + ... + 5268394.

Almost surely, 2^42147124 is an apocalyptic number.

It is an amenable number.

42147124 is a deficient number, since it is larger than the sum of its proper divisors (31610350).

42147124 is a wasteful number, since it uses less digits than its factorization.

42147124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10536785 (or 10536783 counting only the distinct ones).

The product of its digits is 1792, while the sum is 25.

The square root of 42147124 is about 6492.0816384269. The cubic root of 42147124 is about 348.0080700115.

Subtracting 42147124 from its reverse (42174124), we obtain a cube (27000 = 30³).

The spelling of 42147124 in words is "forty-two million, one hundred forty-seven thousand, one hundred twenty-four".