142067489 has 2 divisors, whose sum is σ = 142067490. Its totient is φ = 142067488.

The previous prime is 142067479. The next prime is 142067539. The reversal of 142067489 is 984760241.

142067489 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., 86341264 + 55726225 = 9292^2 + 7465^2 .

It is a cyclic number.

It is not a de Polignac number, because 142067489 - 2²⁴ = 125290273 is a prime.

It is not a weakly prime, because it can be changed into another prime (142067459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71033744 + 71033745.

It is an arithmetic number, because the mean of its divisors is an integer number (71033745).

Almost surely, 2^142067489 is an apocalyptic number.

It is an amenable number.

142067489 is a deficient number, since it is larger than the sum of its proper divisors (1).

142067489 is an equidigital number, since it uses as much as digits as its factorization.

142067489 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96768, while the sum is 41.

The square root of 142067489 is about 11919.2067269596. The cubic root of 142067489 is about 521.7929834371.

The spelling of 142067489 in words is "one hundred forty-two million, sixty-seven thousand, four hundred eighty-nine".