142285747 has 2 divisors, whose sum is σ = 142285748. Its totient is φ = 142285746.

The previous prime is 142285727. The next prime is 142285769. The reversal of 142285747 is 747582241.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 142285747 - 2²⁷ = 8068019 is a prime.

It is not a weakly prime, because it can be changed into another prime (142285727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71142873 + 71142874.

It is an arithmetic number, because the mean of its divisors is an integer number (71142874).

Almost surely, 2^142285747 is an apocalyptic number.

142285747 is a deficient number, since it is larger than the sum of its proper divisors (1).

142285747 is an equidigital number, since it uses as much as digits as its factorization.

142285747 is an evil number, because the sum of its binary digits is even.

The product of its digits is 125440, while the sum is 40.

The square root of 142285747 is about 11928.3589399381. The cubic root of 142285747 is about 522.0600565557.

The spelling of 142285747 in words is "one hundred forty-two million, two hundred eighty-five thousand, seven hundred forty-seven".