142552961 has 2 divisors, whose sum is σ = 142552962. Its totient is φ = 142552960.

The previous prime is 142552937. The next prime is 142552981. The reversal of 142552961 is 169255241.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 133287025 + 9265936 = 11545^2 + 3044^2 .

It is an emirp because it is prime and its reverse (169255241) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 142552961 - 2¹⁸ = 142290817 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (142552901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71276480 + 71276481.

It is an arithmetic number, because the mean of its divisors is an integer number (71276481).

Almost surely, 2^142552961 is an apocalyptic number.

It is an amenable number.

142552961 is a deficient number, since it is larger than the sum of its proper divisors (1).

142552961 is an equidigital number, since it uses as much as digits as its factorization.

142552961 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 21600, while the sum is 35.

The square root of 142552961 is about 11939.5544724248. The cubic root of 142552961 is about 522.3866634514.

The spelling of 142552961 in words is "one hundred forty-two million, five hundred fifty-two thousand, nine hundred sixty-one".