42153124 has 24 divisors (see below), whose sum is σ = 82184760. Its totient is φ = 18783744.

The previous prime is 42153121. The next prime is 42153131. The reversal of 42153124 is 42135124.

It can be written as a sum of positive squares in 4 ways, for example, as 11682724 + 30470400 = 3418^2 + 5520^2 .

It is a junction number, because it is equal to n+sod(n) for n = 42153095 and 42153104.

It is not an unprimeable number, because it can be changed into a prime (42153121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12469 + ... + 15484.

It is an arithmetic number, because the mean of its divisors is an integer number (3424365).

Almost surely, 2^42153124 is an apocalyptic number.

It is an amenable number.

42153124 is a deficient number, since it is larger than the sum of its proper divisors (40031636).

42153124 is a wasteful number, since it uses less digits than its factorization.

42153124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27999 (or 27997 counting only the distinct ones).

The product of its digits is 960, while the sum is 22.

The square root of 42153124 is about 6492.5437233799. The cubic root of 42153124 is about 348.0245831931.

Adding to 42153124 its reverse (42135124), we get a palindrome (84288248).

The spelling of 42153124 in words is "forty-two million, one hundred fifty-three thousand, one hundred twenty-four".