42154100 has 36 divisors (see below), whose sum is σ = 93954924. Its totient is φ = 16404480.

The previous prime is 42154087. The next prime is 42154117. The reversal of 42154100 is 145124.

It can be written as a sum of positive squares in 6 ways, for example, as 1882384 + 40271716 = 1372^2 + 6346^2 .

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 in 11 ways as a sum of consecutive naturals, for example, 1997 + ... + 9396.

It is an arithmetic number, because the mean of its divisors is an integer number (2609859).

Almost surely, 2^42154100 is an apocalyptic number.

It is an amenable number.

42154100 is an abundant number, since it is smaller than the sum of its proper divisors (51800824).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42154100 is a wasteful number, since it uses less digits than its factorization.

42154100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11444 (or 11437 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 42154100 is about 6492.6188860890. The cubic root of 42154100 is about 348.0272691892.

Adding to 42154100 its reverse (145124), we get a palindrome (42299224).

The spelling of 42154100 in words is "forty-two million, one hundred fifty-four thousand, one hundred".