105131506 has 12 divisors (see below), whose sum is σ = 159304986. Its totient is φ = 52035200.

The previous prime is 105131491. The next prime is 105131549. The reversal of 105131506 is 605131501.

It can be written as a sum of positive squares in 3 ways, for example, as 98188281 + 6943225 = 9909^2 + 2635^2 .

It is a super-2 number, since 2×105131506² = 22105267107656072, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 17826 + ... + 22978.

Almost surely, 2^105131506 is an apocalyptic number.

105131506 is a deficient number, since it is larger than the sum of its proper divisors (54173480).

105131506 is an equidigital number, since it uses as much as digits as its factorization.

105131506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5357 (or 5256 counting only the distinct ones).

The product of its (nonzero) digits is 450, while the sum is 22.

The square root of 105131506 is about 10253.3655937941. The cubic root of 105131506 is about 471.9662698533.

The spelling of 105131506 in words is "one hundred five million, one hundred thirty-one thousand, five hundred six".