142004497 has 2 divisors, whose sum is σ = 142004498. Its totient is φ = 142004496.

The previous prime is 142004453. The next prime is 142004509. The reversal of 142004497 is 794400241.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 128232976 + 13771521 = 11324^2 + 3711^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-142004497 is a prime.

It is not a weakly prime, because it can be changed into another prime (142004297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71002248 + 71002249.

It is an arithmetic number, because the mean of its divisors is an integer number (71002249).

Almost surely, 2^142004497 is an apocalyptic number.

It is an amenable number.

142004497 is a deficient number, since it is larger than the sum of its proper divisors (1).

142004497 is an equidigital number, since it uses as much as digits as its factorization.

142004497 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 142004497 is about 11916.5639762475. The cubic root of 142004497 is about 521.7158519202.

The spelling of 142004497 in words is "one hundred forty-two million, four thousand, four hundred ninety-seven".