100340831 has 8 divisors (see below), whose sum is σ = 103714944. Its totient is φ = 96975360.

The previous prime is 100340827. The next prime is 100340837. The reversal of 100340831 is 138043001.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 100340831 - 2² = 100340827 is a prime.

It is a super-2 number, since 2×100340831² = 20136564731541122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100340837) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 28631 + ... + 31943.

It is an arithmetic number, because the mean of its divisors is an integer number (12964368).

Almost surely, 2^100340831 is an apocalyptic number.

100340831 is a deficient number, since it is larger than the sum of its proper divisors (3374113).

100340831 is an equidigital number, since it uses as much as digits as its factorization.

100340831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4321.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 100340831 is about 10017.0270539717. The cubic root of 100340831 is about 464.6856178435.

Adding to 100340831 its reverse (138043001), we get a palindrome (238383832).

The spelling of 100340831 in words is "one hundred million, three hundred forty thousand, eight hundred thirty-one".