4541121491 has 2 divisors, whose sum is σ = 4541121492. Its totient is φ = 4541121490.

The previous prime is 4541121469. The next prime is 4541121503. The reversal of 4541121491 is 1941211454.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4541121491 - 2⁶ = 4541121427 is a prime.

It is not a weakly prime, because it can be changed into another prime (4541121191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2270560745 + 2270560746.

It is an arithmetic number, because the mean of its divisors is an integer number (2270560746).

Almost surely, 2^4541121491 is an apocalyptic number.

4541121491 is a deficient number, since it is larger than the sum of its proper divisors (1).

4541121491 is an equidigital number, since it uses as much as digits as its factorization.

4541121491 is an odious number, because the sum of its binary digits is odd.

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

The square root of 4541121491 is about 67387.8437924823. The cubic root of 4541121491 is about 1655.9772787914.

The spelling of 4541121491 in words is "four billion, five hundred forty-one million, one hundred twenty-one thousand, four hundred ninety-one".