140170061 has 2 divisors, whose sum is σ = 140170062. Its totient is φ = 140170060.

The previous prime is 140170039. The next prime is 140170091. The reversal of 140170061 is 160071041.

140170061 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 110901961 + 29268100 = 10531^2 + 5410^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-140170061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140170091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70085030 + 70085031.

It is an arithmetic number, because the mean of its divisors is an integer number (70085031).

Almost surely, 2^140170061 is an apocalyptic number.

It is an amenable number.

140170061 is a deficient number, since it is larger than the sum of its proper divisors (1).

140170061 is an equidigital number, since it uses as much as digits as its factorization.

140170061 is an evil number, because the sum of its binary digits is even.

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

The square root of 140170061 is about 11839.3437740442. The cubic root of 140170061 is about 519.4595729068.

The spelling of 140170061 in words is "one hundred forty million, one hundred seventy thousand, sixty-one".