142441973 has 2 divisors, whose sum is σ = 142441974. Its totient is φ = 142441972.

The previous prime is 142441961. The next prime is 142442023. The reversal of 142441973 is 379144241.

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., 103591684 + 38850289 = 10178^2 + 6233^2 .

It is a cyclic number.

It is not a de Polignac number, because 142441973 - 2⁶ = 142441909 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142441903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71220986 + 71220987.

It is an arithmetic number, because the mean of its divisors is an integer number (71220987).

Almost surely, 2^142441973 is an apocalyptic number.

It is an amenable number.

142441973 is a deficient number, since it is larger than the sum of its proper divisors (1).

142441973 is an equidigital number, since it uses as much as digits as its factorization.

142441973 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24192, while the sum is 35.

The square root of 142441973 is about 11934.9056552618. The cubic root of 142441973 is about 522.2510560627.

The spelling of 142441973 in words is "one hundred forty-two million, four hundred forty-one thousand, nine hundred seventy-three".