100142142 has 16 divisors (see below), whose sum is σ = 200499840. Its totient is φ = 33344792.

The previous prime is 100142129. The next prime is 100142149. The reversal of 100142142 is 241241001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100142149) 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, 2592 + ... + 14387.

It is an arithmetic number, because the mean of its divisors is an integer number (12531240).

Almost surely, 2^100142142 is an apocalyptic number.

100142142 is an abundant number, since it is smaller than the sum of its proper divisors (100357698).

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

100142142 is a wasteful number, since it uses less digits than its factorization.

100142142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17967.

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 100142142 is about 10007.1045762498. The cubic root of 100142142 is about 464.3787008165.

Adding to 100142142 its reverse (241241001), we get a palindrome (341383143).

The spelling of 100142142 in words is "one hundred million, one hundred forty-two thousand, one hundred forty-two".