142461317 has 4 divisors (see below), whose sum is σ = 142516800. Its totient is φ = 142405836.

The previous prime is 142461307. The next prime is 142461323. The reversal of 142461317 is 713164241.

It is a happy number.

142461317 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 142461317 - 2⁴ = 142461301 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 142461317.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142461307) 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, 23693 + ... + 29090.

It is an arithmetic number, because the mean of its divisors is an integer number (35629200).

Almost surely, 2^142461317 is an apocalyptic number.

It is an amenable number.

142461317 is a deficient number, since it is larger than the sum of its proper divisors (55483).

142461317 is an equidigital number, since it uses as much as digits as its factorization.

142461317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55482.

The product of its digits is 4032, while the sum is 29.

The square root of 142461317 is about 11935.7160237667. The cubic root of 142461317 is about 522.2746960215.

The spelling of 142461317 in words is "one hundred forty-two million, four hundred sixty-one thousand, three hundred seventeen".