120951791 has 2 divisors, whose sum is σ = 120951792. Its totient is φ = 120951790.

The previous prime is 120951781. The next prime is 120951797. The reversal of 120951791 is 197159021.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 120951791 - 2¹⁴ = 120935407 is a prime.

It is a super-3 number, since 3×120951791³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120951797) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60475895 + 60475896.

It is an arithmetic number, because the mean of its divisors is an integer number (60475896).

Almost surely, 2^120951791 is an apocalyptic number.

120951791 is a deficient number, since it is larger than the sum of its proper divisors (1).

120951791 is an equidigital number, since it uses as much as digits as its factorization.

120951791 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5670, while the sum is 35.

The square root of 120951791 is about 10997.8084635076. The cubic root of 120951791 is about 494.5430480153.

The spelling of 120951791 in words is "one hundred twenty million, nine hundred fifty-one thousand, seven hundred ninety-one".