40547105 has 4 divisors (see below), whose sum is σ = 48656532. Its totient is φ = 32437680.

The previous prime is 40547081. The next prime is 40547107. The reversal of 40547105 is 50174504.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 16654561 + 23892544 = 4081^2 + 4888^2 .

It is not a de Polignac number, because 40547105 - 2¹⁶ = 40481569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40547107) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4054706 + ... + 4054715.

It is an arithmetic number, because the mean of its divisors is an integer number (12164133).

Almost surely, 2^40547105 is an apocalyptic number.

It is an amenable number.

40547105 is a deficient number, since it is larger than the sum of its proper divisors (8109427).

40547105 is an equidigital number, since it uses as much as digits as its factorization.

40547105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8109426.

The product of its (nonzero) digits is 2800, while the sum is 26.

The square root of 40547105 is about 6367.6608735076. The cubic root of 40547105 is about 343.5473613405.

The spelling of 40547105 in words is "forty million, five hundred forty-seven thousand, one hundred five".