140368061 has 2 divisors, whose sum is σ = 140368062. Its totient is φ = 140368060.

The previous prime is 140368043. The next prime is 140368073. The reversal of 140368061 is 160863041.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 136165561 + 4202500 = 11669^2 + 2050^2 .

It is a cyclic number.

It is not a de Polignac number, because 140368061 - 2¹⁰ = 140367037 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140364061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70184030 + 70184031.

It is an arithmetic number, because the mean of its divisors is an integer number (70184031).

Almost surely, 2^140368061 is an apocalyptic number.

It is an amenable number.

140368061 is a deficient number, since it is larger than the sum of its proper divisors (1).

140368061 is an equidigital number, since it uses as much as digits as its factorization.

140368061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 140368061 is about 11847.7027731118. The cubic root of 140368061 is about 519.7040488043.

The spelling of 140368061 in words is "one hundred forty million, three hundred sixty-eight thousand, sixty-one".