140585197 has 2 divisors, whose sum is σ = 140585198. Its totient is φ = 140585196.

The previous prime is 140585171. The next prime is 140585231. The reversal of 140585197 is 791585041.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 73770921 + 66814276 = 8589^2 + 8174^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-140585197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140585147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70292598 + 70292599.

It is an arithmetic number, because the mean of its divisors is an integer number (70292599).

Almost surely, 2^140585197 is an apocalyptic number.

It is an amenable number.

140585197 is a deficient number, since it is larger than the sum of its proper divisors (1).

140585197 is an equidigital number, since it uses as much as digits as its factorization.

140585197 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 50400, while the sum is 40.

The square root of 140585197 is about 11856.8628650246. The cubic root of 140585197 is about 519.9718882732.

The spelling of 140585197 in words is "one hundred forty million, five hundred eighty-five thousand, one hundred ninety-seven".