40954521 has 4 divisors (see below), whose sum is σ = 54606032. Its totient is φ = 27303012.

The previous prime is 40954517. The next prime is 40954541. The reversal of 40954521 is 12545904.

40954521 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 40954521 - 2² = 40954517 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40954541) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 6825751 + ... + 6825756.

It is an arithmetic number, because the mean of its divisors is an integer number (13651508).

Almost surely, 2^40954521 is an apocalyptic number.

It is an amenable number.

40954521 is a deficient number, since it is larger than the sum of its proper divisors (13651511).

40954521 is a wasteful number, since it uses less digits than its factorization.

40954521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13651510.

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 40954521 is about 6399.5719388097. The cubic root of 40954521 is about 344.6941797358.

The spelling of 40954521 in words is "forty million, nine hundred fifty-four thousand, five hundred twenty-one".