100142530 has 8 divisors (see below), whose sum is σ = 180256572. Its totient is φ = 40057008.

The previous prime is 100142507. The next prime is 100142531. The reversal of 100142530 is 35241001.

It can be written as a sum of positive squares in 2 ways, for example, as 98982601 + 1159929 = 9949^2 + 1077^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (100142531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5007117 + ... + 5007136.

Almost surely, 2^100142530 is an apocalyptic number.

100142530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

100142530 is a deficient number, since it is larger than the sum of its proper divisors (80114042).

100142530 is a wasteful number, since it uses less digits than its factorization.

100142530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10014260.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 100142530 is about 10007.1239624579. The cubic root of 100142530 is about 464.3793005597.

Adding to 100142530 its reverse (35241001), we get a palindrome (135383531).

It can be divided in two parts, 10014 and 2530, that added together give a square (12544 = 112²).

The spelling of 100142530 in words is "one hundred million, one hundred forty-two thousand, five hundred thirty".