142189373 has 2 divisors, whose sum is σ = 142189374. Its totient is φ = 142189372.

The previous prime is 142189367. The next prime is 142189391. The reversal of 142189373 is 373981241.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 125843524 + 16345849 = 11218^2 + 4043^2 .

It is a cyclic number.

It is not a de Polignac number, because 142189373 - 2¹⁰ = 142188349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142189393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71094686 + 71094687.

It is an arithmetic number, because the mean of its divisors is an integer number (71094687).

Almost surely, 2^142189373 is an apocalyptic number.

It is an amenable number.

142189373 is a deficient number, since it is larger than the sum of its proper divisors (1).

142189373 is an equidigital number, since it uses as much as digits as its factorization.

142189373 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36288, while the sum is 38.

The square root of 142189373 is about 11924.3185549532. The cubic root of 142189373 is about 521.9421614498.

The spelling of 142189373 in words is "one hundred forty-two million, one hundred eighty-nine thousand, three hundred seventy-three".