4145491 has 8 divisors (see below), whose sum is σ = 4808960. Its totient is φ = 3499848.

The previous prime is 4145473. The next prime is 4145503. The reversal of 4145491 is 1945414.

4145491 is digitally balanced in base 8, 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 not a de Polignac number, because 4145491 - 2⁵ = 4145459 is a prime.

It is a Duffinian number.

4145491 is strictly pandigital in base 8.

It is not an unprimeable number, because it can be changed into a prime (4145191) 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, 3951 + ... + 4888.

It is an arithmetic number, because the mean of its divisors is an integer number (601120).

Almost surely, 2^4145491 is an apocalyptic number.

4145491 is a deficient number, since it is larger than the sum of its proper divisors (663469).

4145491 is an equidigital number, since it uses as much as digits as its factorization.

4145491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8913.

The product of its digits is 2880, while the sum is 28.

The square root of 4145491 is about 2036.0478874526. The cubic root of 4145491 is about 160.6418359114.

The spelling of 4145491 in words is "four million, one hundred forty-five thousand, four hundred ninety-one".