42126154 has 64 divisors (see below), whose sum is σ = 81100800. Its totient is φ = 16003008.

The previous prime is 42126151. The next prime is 42126157. The reversal of 42126154 is 45162124.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (42126151) and next prime (42126157).

It is a super-2 number, since 2×42126154² = 3549225701663432, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (42126151) by changing a digit.

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 in 31 ways as a sum of consecutive naturals, for example, 331639 + ... + 331765.

It is an arithmetic number, because the mean of its divisors is an integer number (1267200).

Almost surely, 2^42126154 is an apocalyptic number.

42126154 is a deficient number, since it is larger than the sum of its proper divisors (38974646).

42126154 is a wasteful number, since it uses less digits than its factorization.

42126154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227.

The product of its digits is 1920, while the sum is 25.

The square root of 42126154 is about 6490.4663931030. The cubic root of 42126154 is about 347.9503441283.

Adding to 42126154 its reverse (45162124), we get a palindrome (87288278).

The spelling of 42126154 in words is "forty-two million, one hundred twenty-six thousand, one hundred fifty-four".