100231542 has 48 divisors (see below), whose sum is σ = 223134912. Its totient is φ = 32501760.

The previous prime is 100231519. The next prime is 100231553. The reversal of 100231542 is 245132001.

100231542 is a `hidden beast` number, since 100 + 23 + 1 + 542 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 217192 + ... + 217652.

It is an arithmetic number, because the mean of its divisors is an integer number (4648644).

Almost surely, 2^100231542 is an apocalyptic number.

100231542 is an abundant number, since it is smaller than the sum of its proper divisors (122903370).

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

100231542 is a wasteful number, since it uses less digits than its factorization.

100231542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 773 (or 770 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 100231542 is about 10011.5704062849. The cubic root of 100231542 is about 464.5168481442.

Adding to 100231542 its reverse (245132001), we get a palindrome (345363543).

The spelling of 100231542 in words is "one hundred million, two hundred thirty-one thousand, five hundred forty-two".