40165241 has 4 divisors (see below), whose sum is σ = 40179300. Its totient is φ = 40151184.

The previous prime is 40165231. The next prime is 40165247. The reversal of 40165241 is 14256104.

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 14409616 + 25755625 = 3796^2 + 5075^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40165241 is a prime.

It is a super-2 number, since 2×40165241² = 3226493169176162, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40165247) 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, 1046 + ... + 9023.

It is an arithmetic number, because the mean of its divisors is an integer number (10044825).

Almost surely, 2^40165241 is an apocalyptic number.

It is an amenable number.

40165241 is a deficient number, since it is larger than the sum of its proper divisors (14059).

40165241 is a wasteful number, since it uses less digits than its factorization.

40165241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14058.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 40165241 is about 6337.6053048450. The cubic root of 40165241 is about 342.4654725703.

The spelling of 40165241 in words is "forty million, one hundred sixty-five thousand, two hundred forty-one".