140170417 has 4 divisors (see below), whose sum is σ = 140211700. Its totient is φ = 140129136.

The previous prime is 140170399. The next prime is 140170447. The reversal of 140170417 is 714071041.

It is a happy number.

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 58430736 + 81739681 = 7644^2 + 9041^2 .

It is a cyclic number.

It is not a de Polignac number, because 140170417 - 2¹⁵ = 140137649 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 140170391 and 140170400.

It is not an unprimeable number, because it can be changed into a prime (140170447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15042 + ... + 22507.

It is an arithmetic number, because the mean of its divisors is an integer number (35052925).

Almost surely, 2^140170417 is an apocalyptic number.

It is an amenable number.

140170417 is a deficient number, since it is larger than the sum of its proper divisors (41283).

140170417 is an equidigital number, since it uses as much as digits as its factorization.

140170417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41282.

The product of its (nonzero) digits is 784, while the sum is 25.

The square root of 140170417 is about 11839.3588086518. The cubic root of 140170417 is about 519.4600126760.

The spelling of 140170417 in words is "one hundred forty million, one hundred seventy thousand, four hundred seventeen".