142572889 has 2 divisors, whose sum is σ = 142572890. Its totient is φ = 142572888.

The previous prime is 142572847. The next prime is 142572917. The reversal of 142572889 is 988275241.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 142396489 + 176400 = 11933^2 + 420^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-142572889 is a prime.

It is not a weakly prime, because it can be changed into another prime (142572389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71286444 + 71286445.

It is an arithmetic number, because the mean of its divisors is an integer number (71286445).

Almost surely, 2^142572889 is an apocalyptic number.

It is an amenable number.

142572889 is a deficient number, since it is larger than the sum of its proper divisors (1).

142572889 is an equidigital number, since it uses as much as digits as its factorization.

142572889 is an evil number, because the sum of its binary digits is even.

The product of its digits is 322560, while the sum is 46.

The square root of 142572889 is about 11940.3889802636. The cubic root of 142572889 is about 522.4110044316.

The spelling of 142572889 in words is "one hundred forty-two million, five hundred seventy-two thousand, eight hundred eighty-nine".