140850191 has 2 divisors, whose sum is σ = 140850192. Its totient is φ = 140850190.

The previous prime is 140850179. The next prime is 140850197. The reversal of 140850191 is 191058041.

It is a strong prime.

It is an emirp because it is prime and its reverse (191058041) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-140850191 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140850197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70425095 + 70425096.

It is an arithmetic number, because the mean of its divisors is an integer number (70425096).

Almost surely, 2^140850191 is an apocalyptic number.

140850191 is a deficient number, since it is larger than the sum of its proper divisors (1).

140850191 is an equidigital number, since it uses as much as digits as its factorization.

140850191 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440, while the sum is 29.

The square root of 140850191 is about 11868.0323137410. The cubic root of 140850191 is about 520.2983876708.

The spelling of 140850191 in words is "one hundred forty million, eight hundred fifty thousand, one hundred ninety-one".