126742100 has 36 divisors (see below), whose sum is σ = 278919648. Its totient is φ = 49980000.

The previous prime is 126742087. The next prime is 126742139. The reversal of 126742100 is 1247621.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1826 + ... + 16025.

It is an arithmetic number, because the mean of its divisors is an integer number (7747768).

Almost surely, 2^126742100 is an apocalyptic number.

126742100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

126742100 is an abundant number, since it is smaller than the sum of its proper divisors (152177548).

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

126742100 is a wasteful number, since it uses less digits than its factorization.

126742100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17936 (or 17929 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 126742100 is about 11257.9793924132. The cubic root of 126742100 is about 502.3120919815.

Adding to 126742100 its reverse (1247621), we get a palindrome (127989721).

The spelling of 126742100 in words is "one hundred twenty-six million, seven hundred forty-two thousand, one hundred".