140061017 has 4 divisors (see below), whose sum is σ = 140106420. Its totient is φ = 140015616.

The previous prime is 140061013. The next prime is 140061023. The reversal of 140061017 is 710160041.

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 23658496 + 116402521 = 4864^2 + 10789^2 .

It is a cyclic number.

It is not a de Polignac number, because 140061017 - 2² = 140061013 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 140061017.

It is not an unprimeable number, because it can be changed into a prime (140061013) 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, 17708 + ... + 24365.

It is an arithmetic number, because the mean of its divisors is an integer number (35026605).

Almost surely, 2^140061017 is an apocalyptic number.

It is an amenable number.

140061017 is a deficient number, since it is larger than the sum of its proper divisors (45403).

140061017 is an equidigital number, since it uses as much as digits as its factorization.

140061017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45402.

The product of its (nonzero) digits is 168, while the sum is 20.

The square root of 140061017 is about 11834.7377241745. The cubic root of 140061017 is about 519.3248350411.

The spelling of 140061017 in words is "one hundred forty million, sixty-one thousand, seventeen".