142705417 has 8 divisors (see below), whose sum is σ = 143585280. Its totient is φ = 141828960.

The previous prime is 142705403. The next prime is 142705427. The reversal of 142705417 is 714507241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 142705417 - 2⁷ = 142705289 is a prime.

It is a super-2 number, since 2×142705417² = 40729672082287778, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142705427) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 156192 + ... + 157102.

It is an arithmetic number, because the mean of its divisors is an integer number (17948160).

Almost surely, 2^142705417 is an apocalyptic number.

It is an amenable number.

142705417 is a deficient number, since it is larger than the sum of its proper divisors (879863).

142705417 is an equidigital number, since it uses as much as digits as its factorization.

142705417 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1703.

The product of its (nonzero) digits is 7840, while the sum is 31.

The square root of 142705417 is about 11945.9372591689. The cubic root of 142705417 is about 522.5728225843.

The spelling of 142705417 in words is "one hundred forty-two million, seven hundred five thousand, four hundred seventeen".