119629981 has 2 divisors, whose sum is σ = 119629982. Its totient is φ = 119629980.

The previous prime is 119629931. The next prime is 119629997. The reversal of 119629981 is 189926911.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 78605956 + 41024025 = 8866^2 + 6405^2 .

It is an emirp because it is prime and its reverse (189926911) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 119629981 - 2⁹ = 119629469 is a prime.

It is a super-2 number, since 2×119629981² = 28622664708120722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (119629921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59814990 + 59814991.

It is an arithmetic number, because the mean of its divisors is an integer number (59814991).

Almost surely, 2^119629981 is an apocalyptic number.

It is an amenable number.

119629981 is a deficient number, since it is larger than the sum of its proper divisors (1).

119629981 is an equidigital number, since it uses as much as digits as its factorization.

119629981 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 69984, while the sum is 46.

The square root of 119629981 is about 10937.5491313182. The cubic root of 119629981 is about 492.7349232675.

The spelling of 119629981 in words is "one hundred nineteen million, six hundred twenty-nine thousand, nine hundred eighty-one".