142860961 has 2 divisors, whose sum is σ = 142860962. Its totient is φ = 142860960.

The previous prime is 142860937. The next prime is 142861009. The reversal of 142860961 is 169068241.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 122213025 + 20647936 = 11055^2 + 4544^2 .

It is a cyclic number.

It is not a de Polignac number, because 142860961 - 2⁵ = 142860929 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 142860961.

It is not a weakly prime, because it can be changed into another prime (142860161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71430480 + 71430481.

It is an arithmetic number, because the mean of its divisors is an integer number (71430481).

Almost surely, 2^142860961 is an apocalyptic number.

It is an amenable number.

142860961 is a deficient number, since it is larger than the sum of its proper divisors (1).

142860961 is an equidigital number, since it uses as much as digits as its factorization.

142860961 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20736, while the sum is 37.

The square root of 142860961 is about 11952.4458166519. The cubic root of 142860961 is about 522.7626157839.

The spelling of 142860961 in words is "one hundred forty-two million, eight hundred sixty thousand, nine hundred sixty-one".