142265173 has 2 divisors, whose sum is σ = 142265174. Its totient is φ = 142265172.

The previous prime is 142265171. The next prime is 142265209. The reversal of 142265173 is 371562241.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 115412049 + 26853124 = 10743^2 + 5182^2 .

It is a cyclic number.

It is not a de Polignac number, because 142265173 - 2¹ = 142265171 is a prime.

Together with 142265171, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142265171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71132586 + 71132587.

It is an arithmetic number, because the mean of its divisors is an integer number (71132587).

Almost surely, 2^142265173 is an apocalyptic number.

It is an amenable number.

142265173 is a deficient number, since it is larger than the sum of its proper divisors (1).

142265173 is an equidigital number, since it uses as much as digits as its factorization.

142265173 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10080, while the sum is 31.

The square root of 142265173 is about 11927.4965101651. The cubic root of 142265173 is about 522.0348926828.

The spelling of 142265173 in words is "one hundred forty-two million, two hundred sixty-five thousand, one hundred seventy-three".