100731146 has 8 divisors (see below), whose sum is σ = 151757220. Its totient is φ = 50145408.

The previous prime is 100731143. The next prime is 100731149. The reversal of 100731146 is 641137001.

It is an interprime number because it is at equal distance from previous prime (100731143) and next prime (100731149).

It can be written as a sum of positive squares in 2 ways, for example, as 90459121 + 10272025 = 9511^2 + 3205^2 .

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 (100731143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 109511 + ... + 110426.

Almost surely, 2^100731146 is an apocalyptic number.

100731146 is a deficient number, since it is larger than the sum of its proper divisors (51026074).

100731146 is a wasteful number, since it uses less digits than its factorization.

100731146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220168.

The product of its (nonzero) digits is 504, while the sum is 23.

The square root of 100731146 is about 10036.4907213627. The cubic root of 100731146 is about 465.2873639033.

Adding to 100731146 its reverse (641137001), we get a palindrome (741868147).

The spelling of 100731146 in words is "one hundred million, seven hundred thirty-one thousand, one hundred forty-six".