142000997 has 2 divisors, whose sum is σ = 142000998. Its totient is φ = 142000996.

The previous prime is 142000993. The next prime is 142001021. The reversal of 142000997 is 799000241.

142000997 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 90649441 + 51351556 = 9521^2 + 7166^2 .

It is a cyclic number.

It is not a de Polignac number, because 142000997 - 2² = 142000993 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142000993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71000498 + 71000499.

It is an arithmetic number, because the mean of its divisors is an integer number (71000499).

Almost surely, 2^142000997 is an apocalyptic number.

It is an amenable number.

142000997 is a deficient number, since it is larger than the sum of its proper divisors (1).

142000997 is an equidigital number, since it uses as much as digits as its factorization.

142000997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4536, while the sum is 32.

The square root of 142000997 is about 11916.4171209303. The cubic root of 142000997 is about 521.7115656229.

The spelling of 142000997 in words is "one hundred forty-two million, nine hundred ninety-seven", and thus it is an aban number.