142022989 has 2 divisors, whose sum is σ = 142022990. Its totient is φ = 142022988.

The previous prime is 142022977. The next prime is 142023001. The reversal of 142022989 is 989220241.

142022989 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a balanced prime because it is at equal distance from previous prime (142022977) and next prime (142023001).

It can be written as a sum of positive squares in only one way, i.e., 142014889 + 8100 = 11917^2 + 90^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-142022989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142022939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71011494 + 71011495.

It is an arithmetic number, because the mean of its divisors is an integer number (71011495).

Almost surely, 2^142022989 is an apocalyptic number.

It is an amenable number.

142022989 is a deficient number, since it is larger than the sum of its proper divisors (1).

142022989 is an equidigital number, since it uses as much as digits as its factorization.

142022989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20736, while the sum is 37.

The square root of 142022989 is about 11917.3398457877. The cubic root of 142022989 is about 521.7384970970.

The spelling of 142022989 in words is "one hundred forty-two million, twenty-two thousand, nine hundred eighty-nine".