45194081 has 8 divisors (see below), whose sum is σ = 46371360. Its totient is φ = 44032032.

The previous prime is 45194053. The next prime is 45194089. The reversal of 45194081 is 18049154.

45194081 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45194081 is a prime.

It is a super-2 number, since 2×45194081² = 4085009914869122, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (45194089) 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 7 ways as a sum of consecutive naturals, for example, 2330 + ... + 9788.

It is an arithmetic number, because the mean of its divisors is an integer number (5796420).

Almost surely, 2^45194081 is an apocalyptic number.

It is an amenable number.

45194081 is a deficient number, since it is larger than the sum of its proper divisors (1177279).

45194081 is an equidigital number, since it uses as much as digits as its factorization.

45194081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7615.

The product of its (nonzero) digits is 5760, while the sum is 32.

The square root of 45194081 is about 6722.6543121002. The cubic root of 45194081 is about 356.1999492217.

The spelling of 45194081 in words is "forty-five million, one hundred ninety-four thousand, eighty-one".