142937953 has 2 divisors, whose sum is σ = 142937954. Its totient is φ = 142937952.

The previous prime is 142937933. The next prime is 142937957. The reversal of 142937953 is 359739241.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 77845329 + 65092624 = 8823^2 + 8068^2 .

It is an emirp because it is prime and its reverse (359739241) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-142937953 is a prime.

It is not a weakly prime, because it can be changed into another prime (142937957) 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, 71468976 + 71468977.

It is an arithmetic number, because the mean of its divisors is an integer number (71468977).

Almost surely, 2^142937953 is an apocalyptic number.

It is an amenable number.

142937953 is a deficient number, since it is larger than the sum of its proper divisors (1).

142937953 is an equidigital number, since it uses as much as digits as its factorization.

142937953 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 204120, while the sum is 43.

The square root of 142937953 is about 11955.6661462254. Note that the first 3 decimals coincide. The cubic root of 142937953 is about 522.8565096669.

The spelling of 142937953 in words is "one hundred forty-two million, nine hundred thirty-seven thousand, nine hundred fifty-three".