4151115491 has 2 divisors, whose sum is σ = 4151115492. Its totient is φ = 4151115490.

The previous prime is 4151115461. The next prime is 4151115503. The reversal of 4151115491 is 1945111514.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4151115491 - 2⁶ = 4151115427 is a prime.

It is not a weakly prime, because it can be changed into another prime (4151115461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2075557745 + 2075557746.

It is an arithmetic number, because the mean of its divisors is an integer number (2075557746).

Almost surely, 2^4151115491 is an apocalyptic number.

4151115491 is a deficient number, since it is larger than the sum of its proper divisors (1).

4151115491 is an equidigital number, since it uses as much as digits as its factorization.

4151115491 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3600, while the sum is 32.

The square root of 4151115491 is about 64429.1509411695. The cubic root of 4151115491 is about 1607.1445459032.

The spelling of 4151115491 in words is "four billion, one hundred fifty-one million, one hundred fifteen thousand, four hundred ninety-one".