142897 has 2 divisors, whose sum is σ = 142898. Its totient is φ = 142896.

The previous prime is 142873. The next prime is 142903. The reversal of 142897 is 798241.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 141376 + 1521 = 376^2 + 39^2 .

It is a cyclic number.

It is not a de Polignac number, because 142897 - 2¹⁵ = 110129 is a prime.

It is not a weakly prime, because it can be changed into another prime (142837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71448 + 71449.

It is an arithmetic number, because the mean of its divisors is an integer number (71449).

2¹⁴²⁸⁹⁷ is an apocalyptic number.

It is an amenable number.

142897 is a deficient number, since it is larger than the sum of its proper divisors (1).

142897 is an equidigital number, since it uses as much as digits as its factorization.

142897 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4032, while the sum is 31.

The square root of 142897 is about 378.0171953761. The cubic root of 142897 is about 52.2806570544.

The spelling of 142897 in words is "one hundred forty-two thousand, eight hundred ninety-seven".