142347973 has 2 divisors, whose sum is σ = 142347974. Its totient is φ = 142347972.

The previous prime is 142347929. The next prime is 142348013. The reversal of 142347973 is 379743241.

It is an a-pointer prime, because the next prime (142348013) can be obtained adding 142347973 to its sum of digits (40).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 95589729 + 46758244 = 9777^2 + 6838^2 .

It is a cyclic number.

It is not a de Polignac number, because 142347973 - 2¹⁷ = 142216901 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142347173) 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, 71173986 + 71173987.

It is an arithmetic number, because the mean of its divisors is an integer number (71173987).

Almost surely, 2^142347973 is an apocalyptic number.

It is an amenable number.

142347973 is a deficient number, since it is larger than the sum of its proper divisors (1).

142347973 is an equidigital number, since it uses as much as digits as its factorization.

142347973 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 127008, while the sum is 40.

The square root of 142347973 is about 11930.9669767375. The cubic root of 142347973 is about 522.1361498521.

The spelling of 142347973 in words is "one hundred forty-two million, three hundred forty-seven thousand, nine hundred seventy-three".