142123297 has 2 divisors, whose sum is σ = 142123298. Its totient is φ = 142123296.

The previous prime is 142123277. The next prime is 142123301. The reversal of 142123297 is 792321241.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 85211361 + 56911936 = 9231^2 + 7544^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-142123297 is a prime.

It is not a weakly prime, because it can be changed into another prime (142123237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71061648 + 71061649.

It is an arithmetic number, because the mean of its divisors is an integer number (71061649).

Almost surely, 2^142123297 is an apocalyptic number.

It is an amenable number.

142123297 is a deficient number, since it is larger than the sum of its proper divisors (1).

142123297 is an equidigital number, since it uses as much as digits as its factorization.

142123297 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6048, while the sum is 31.

The square root of 142123297 is about 11921.5475924898. The cubic root of 142123297 is about 521.8612993499.

The spelling of 142123297 in words is "one hundred forty-two million, one hundred twenty-three thousand, two hundred ninety-seven".