142607317 has 4 divisors (see below), whose sum is σ = 142684236. Its totient is φ = 142530400.

The previous prime is 142607303. The next prime is 142607321. The reversal of 142607317 is 713706241.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 21585316 + 121022001 = 4646^2 + 11001^2 .

It is a cyclic number.

It is not a de Polignac number, because 142607317 - 2¹¹ = 142605269 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142607327) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35608 + ... + 39409.

It is an arithmetic number, because the mean of its divisors is an integer number (35671059).

Almost surely, 2^142607317 is an apocalyptic number.

It is an amenable number.

142607317 is a deficient number, since it is larger than the sum of its proper divisors (76919).

142607317 is an equidigital number, since it uses as much as digits as its factorization.

142607317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76918.

The product of its (nonzero) digits is 7056, while the sum is 31.

The square root of 142607317 is about 11941.8305548186. The cubic root of 142607317 is about 522.4530510382.

The spelling of 142607317 in words is "one hundred forty-two million, six hundred seven thousand, three hundred seventeen".