142952947 has 2 divisors, whose sum is σ = 142952948. Its totient is φ = 142952946.

The previous prime is 142952939. The next prime is 142952969. The reversal of 142952947 is 749259241.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 142952947 - 2³ = 142952939 is a prime.

It is not a weakly prime, because it can be changed into another prime (142952917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71476473 + 71476474.

It is an arithmetic number, because the mean of its divisors is an integer number (71476474).

Almost surely, 2^142952947 is an apocalyptic number.

142952947 is a deficient number, since it is larger than the sum of its proper divisors (1).

142952947 is an equidigital number, since it uses as much as digits as its factorization.

142952947 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 181440, while the sum is 43.

The square root of 142952947 is about 11956.2931964719. The cubic root of 142952947 is about 522.8747913438.

The spelling of 142952947 in words is "one hundred forty-two million, nine hundred fifty-two thousand, nine hundred forty-seven".