119912861 has 2 divisors, whose sum is σ = 119912862. Its totient is φ = 119912860.

The previous prime is 119912851. The next prime is 119912879. The reversal of 119912861 is 168219911.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 112487236 + 7425625 = 10606^2 + 2725^2 .

It is a cyclic number.

It is not a de Polignac number, because 119912861 - 2¹⁰ = 119911837 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (119912801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59956430 + 59956431.

It is an arithmetic number, because the mean of its divisors is an integer number (59956431).

Almost surely, 2^119912861 is an apocalyptic number.

It is an amenable number.

119912861 is a deficient number, since it is larger than the sum of its proper divisors (1).

119912861 is an equidigital number, since it uses as much as digits as its factorization.

119912861 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7776, while the sum is 38.

The square root of 119912861 is about 10950.4730948028. The cubic root of 119912861 is about 493.1229952589.

The spelling of 119912861 in words is "one hundred nineteen million, nine hundred twelve thousand, eight hundred sixty-one".