142474417 has 2 divisors, whose sum is σ = 142474418. Its totient is φ = 142474416.

The previous prime is 142474393. The next prime is 142474447. The reversal of 142474417 is 714474241.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 136328976 + 6145441 = 11676^2 + 2479^2 .

It is a cyclic number.

It is not a de Polignac number, because 142474417 - 2⁷ = 142474289 is a prime.

It is not a weakly prime, because it can be changed into another prime (142474447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71237208 + 71237209.

It is an arithmetic number, because the mean of its divisors is an integer number (71237209).

Almost surely, 2^142474417 is an apocalyptic number.

It is an amenable number.

142474417 is a deficient number, since it is larger than the sum of its proper divisors (1).

142474417 is an equidigital number, since it uses as much as digits as its factorization.

142474417 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 25088, while the sum is 34.

The square root of 142474417 is about 11936.2647842614. The cubic root of 142474417 is about 522.2907040836.

The spelling of 142474417 in words is "one hundred forty-two million, four hundred seventy-four thousand, four hundred seventeen".