140897017 has 2 divisors, whose sum is σ = 140897018. Its totient is φ = 140897016.

The previous prime is 140896963. The next prime is 140897039. The reversal of 140897017 is 710798041.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 139617856 + 1279161 = 11816^2 + 1131^2 .

It is a cyclic number.

It is not a de Polignac number, because 140897017 - 2¹⁵ = 140864249 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (140897417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70448508 + 70448509.

It is an arithmetic number, because the mean of its divisors is an integer number (70448509).

Almost surely, 2^140897017 is an apocalyptic number.

It is an amenable number.

140897017 is a deficient number, since it is larger than the sum of its proper divisors (1).

140897017 is an equidigital number, since it uses as much as digits as its factorization.

140897017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14112, while the sum is 37.

The square root of 140897017 is about 11870.0049283899. The cubic root of 140897017 is about 520.3560394513.

The spelling of 140897017 in words is "one hundred forty million, eight hundred ninety-seven thousand, seventeen".