140499829 has 2 divisors, whose sum is σ = 140499830. Its totient is φ = 140499828.

The previous prime is 140499823. The next prime is 140499859. The reversal of 140499829 is 928994041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 139004100 + 1495729 = 11790^2 + 1223^2 .

It is an emirp because it is prime and its reverse (928994041) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-140499829 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 (140499823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70249914 + 70249915.

It is an arithmetic number, because the mean of its divisors is an integer number (70249915).

Almost surely, 2^140499829 is an apocalyptic number.

It is an amenable number.

140499829 is a deficient number, since it is larger than the sum of its proper divisors (1).

140499829 is an equidigital number, since it uses as much as digits as its factorization.

140499829 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 186624, while the sum is 46.

The square root of 140499829 is about 11853.2623779279. The cubic root of 140499829 is about 519.8666188969.

The spelling of 140499829 in words is "one hundred forty million, four hundred ninety-nine thousand, eight hundred twenty-nine".