100315143 has 12 divisors (see below), whose sum is σ = 145167048. Its totient is φ = 66753360.

The previous prime is 100315139. The next prime is 100315157. The reversal of 100315143 is 341513001.

It is not a de Polignac number, because 100315143 - 2² = 100315139 is a prime.

It is a super-2 number, since 2×100315143² = 20126255830220898, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100315043) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4993 + ... + 15018.

It is an arithmetic number, because the mean of its divisors is an integer number (12097254).

Almost surely, 2^100315143 is an apocalyptic number.

100315143 is a deficient number, since it is larger than the sum of its proper divisors (44851905).

100315143 is a wasteful number, since it uses less digits than its factorization.

100315143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20574 (or 20571 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 100315143 is about 10015.7447551343. The cubic root of 100315143 is about 464.6459601329.

Adding to 100315143 its reverse (341513001), we get a palindrome (441828144).

The spelling of 100315143 in words is "one hundred million, three hundred fifteen thousand, one hundred forty-three".