105731331 has 8 divisors (see below), whose sum is σ = 141754704. Its totient is φ = 70097760.

The previous prime is 105731321. The next prime is 105731357. The reversal of 105731331 is 133137501.

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

It is not a de Polignac number, because 105731331 - 2⁶ = 105731267 is a prime.

It is a super-2 number, since 2×105731331² = 22358228710063122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (105731321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96816 + ... + 97901.

It is an arithmetic number, because the mean of its divisors is an integer number (17719338).

Almost surely, 2^105731331 is an apocalyptic number.

105731331 is a deficient number, since it is larger than the sum of its proper divisors (36023373).

105731331 is a wasteful number, since it uses less digits than its factorization.

105731331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194901.

The product of its (nonzero) digits is 945, while the sum is 24.

The square root of 105731331 is about 10282.5741426940. The cubic root of 105731331 is about 472.8621651549.

Adding to 105731331 its reverse (133137501), we get a palindrome (238868832).

The spelling of 105731331 in words is "one hundred five million, seven hundred thirty-one thousand, three hundred thirty-one".