120985951 has 2 divisors, whose sum is σ = 120985952. Its totient is φ = 120985950.

The previous prime is 120985919. The next prime is 120985973. The reversal of 120985951 is 159589021.

It is a strong prime.

It is an emirp because it is prime and its reverse (159589021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 120985951 - 2⁵ = 120985919 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120985351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60492975 + 60492976.

It is an arithmetic number, because the mean of its divisors is an integer number (60492976).

Almost surely, 2^120985951 is an apocalyptic number.

120985951 is a deficient number, since it is larger than the sum of its proper divisors (1).

120985951 is an equidigital number, since it uses as much as digits as its factorization.

120985951 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32400, while the sum is 40.

The square root of 120985951 is about 10999.3613905535. The cubic root of 120985951 is about 494.5896009992.

The spelling of 120985951 in words is "one hundred twenty million, nine hundred eighty-five thousand, nine hundred fifty-one".