105412531 has 8 divisors (see below), whose sum is σ = 120615264. Its totient is φ = 90245760.

The previous prime is 105412523. The next prime is 105412591. The reversal of 105412531 is 135214501.

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 105412531 - 2³ = 105412523 is a prime.

It is a super-2 number, since 2×105412531² = 22223603383651922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (105412591) 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, 2380 + ... + 14713.

It is an arithmetic number, because the mean of its divisors is an integer number (15076908).

Almost surely, 2^105412531 is an apocalyptic number.

105412531 is a deficient number, since it is larger than the sum of its proper divisors (15202733).

105412531 is an equidigital number, since it uses as much as digits as its factorization.

105412531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17981.

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 105412531 is about 10267.0604848710. The cubic root of 105412531 is about 472.3864303440.

The spelling of 105412531 in words is "one hundred five million, four hundred twelve thousand, five hundred thirty-one".