140358191 has 2 divisors, whose sum is σ = 140358192. Its totient is φ = 140358190.

The previous prime is 140358161. The next prime is 140358209. The reversal of 140358191 is 191853041.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-140358191 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 (140358161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70179095 + 70179096.

It is an arithmetic number, because the mean of its divisors is an integer number (70179096).

Almost surely, 2^140358191 is an apocalyptic number.

140358191 is a deficient number, since it is larger than the sum of its proper divisors (1).

140358191 is an equidigital number, since it uses as much as digits as its factorization.

140358191 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4320, while the sum is 32.

The square root of 140358191 is about 11847.2862293438. The cubic root of 140358191 is about 519.6918674976.

The spelling of 140358191 in words is "one hundred forty million, three hundred fifty-eight thousand, one hundred ninety-one".