120071491 has 2 divisors, whose sum is σ = 120071492. Its totient is φ = 120071490.

The previous prime is 120071489. The next prime is 120071509. The reversal of 120071491 is 194170021.

It is a weak prime.

It is an emirp because it is prime and its reverse (194170021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 120071491 - 2¹ = 120071489 is a prime.

Together with 120071489, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (120071461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60035745 + 60035746.

It is an arithmetic number, because the mean of its divisors is an integer number (60035746).

Almost surely, 2^120071491 is an apocalyptic number.

120071491 is a deficient number, since it is larger than the sum of its proper divisors (1).

120071491 is an equidigital number, since it uses as much as digits as its factorization.

120071491 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 504, while the sum is 25.

The square root of 120071491 is about 10957.7137670228. The cubic root of 120071491 is about 493.3403465138.

The spelling of 120071491 in words is "one hundred twenty million, seventy-one thousand, four hundred ninety-one".