140180849 has 2 divisors, whose sum is σ = 140180850. Its totient is φ = 140180848.

The previous prime is 140180797. The next prime is 140180851. The reversal of 140180849 is 948081041.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 92294449 + 47886400 = 9607^2 + 6920^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-140180849 is a prime.

Together with 140180851, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (140180749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70090424 + 70090425.

It is an arithmetic number, because the mean of its divisors is an integer number (70090425).

Almost surely, 2^140180849 is an apocalyptic number.

It is an amenable number.

140180849 is a deficient number, since it is larger than the sum of its proper divisors (1).

140180849 is an equidigital number, since it uses as much as digits as its factorization.

140180849 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9216, while the sum is 35.

The square root of 140180849 is about 11839.7993648541. The cubic root of 140180849 is about 519.4728990671.

The spelling of 140180849 in words is "one hundred forty million, one hundred eighty thousand, eight hundred forty-nine".