105040731 has 8 divisors (see below), whose sum is σ = 140307984. Its totient is φ = 69900320.

The previous prime is 105040703. The next prime is 105040751. The reversal of 105040731 is 137040501.

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 105040731 - 2⁶ = 105040667 is a prime.

It is a super-2 number, since 2×105040731² = 22067110338028722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 105040698 and 105040707.

It is not an unprimeable number, because it can be changed into a prime (105040751) 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, 29760 + ... + 33101.

It is an arithmetic number, because the mean of its divisors is an integer number (17538498).

Almost surely, 2^105040731 is an apocalyptic number.

105040731 is a deficient number, since it is larger than the sum of its proper divisors (35267253).

105040731 is an equidigital number, since it uses as much as digits as its factorization.

105040731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63421.

The product of its (nonzero) digits is 420, while the sum is 21.

The square root of 105040731 is about 10248.9380425486. The cubic root of 105040731 is about 471.8303921752.

The spelling of 105040731 in words is "one hundred five million, forty thousand, seven hundred thirty-one".