142498457 has 2 divisors, whose sum is σ = 142498458. Its totient is φ = 142498456.

The previous prime is 142498439. The next prime is 142498459. The reversal of 142498457 is 754894241.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 116985856 + 25512601 = 10816^2 + 5051^2 .

It is a cyclic number.

It is not a de Polignac number, because 142498457 - 2¹⁶ = 142432921 is a prime.

Together with 142498459, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (142498459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71249228 + 71249229.

It is an arithmetic number, because the mean of its divisors is an integer number (71249229).

Almost surely, 2^142498457 is an apocalyptic number.

It is an amenable number.

142498457 is a deficient number, since it is larger than the sum of its proper divisors (1).

142498457 is an equidigital number, since it uses as much as digits as its factorization.

142498457 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 322560, while the sum is 44.

The square root of 142498457 is about 11937.2717569803. The cubic root of 142498457 is about 522.3200781581.

The spelling of 142498457 in words is "one hundred forty-two million, four hundred ninety-eight thousand, four hundred fifty-seven".