42154124 has 12 divisors (see below), whose sum is σ = 76977264. Its totient is φ = 20160624.

The previous prime is 42154121. The next prime is 42154153. The reversal of 42154124 is 42145124.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a self number, because there is not a number n which added to its sum of digits gives 42154124.

It is not an unprimeable number, because it can be changed into a prime (42154121) 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, 229007 + ... + 229190.

It is an arithmetic number, because the mean of its divisors is an integer number (6414772).

Almost surely, 2^42154124 is an apocalyptic number.

It is an amenable number.

42154124 is a deficient number, since it is larger than the sum of its proper divisors (34823140).

42154124 is a wasteful number, since it uses less digits than its factorization.

42154124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 458224 (or 458222 counting only the distinct ones).

The product of its digits is 1280, while the sum is 23.

The square root of 42154124 is about 6492.6207343414. The cubic root of 42154124 is about 348.0273352377.

Adding to 42154124 its reverse (42145124), we get a palindrome (84299248).

It can be divided in two parts, 421 and 54124, that added together give a palindrome (54545).

The spelling of 42154124 in words is "forty-two million, one hundred fifty-four thousand, one hundred twenty-four".