12100542 has 16 divisors (see below), whose sum is σ = 24241680. Its totient is φ = 4026752.

The previous prime is 12100541. The next prime is 12100567. The reversal of 12100542 is 24500121.

It is a plaindrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12100541) 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, 3334 + ... + 5942.

It is an arithmetic number, because the mean of its divisors is an integer number (1515105).

Almost surely, 2^12100542 is an apocalyptic number.

12100542 is an abundant number, since it is smaller than the sum of its proper divisors (12141138).

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

12100542 is a wasteful number, since it uses less digits than its factorization.

12100542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3387.

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 12100542 is about 3478.5833323352. The cubic root of 12100542 is about 229.5804702599.

Adding to 12100542 its reverse (24500121), we get a palindrome (36600663).

The spelling of 12100542 in words is "twelve million, one hundred thousand, five hundred forty-two".