140049907 has 2 divisors, whose sum is σ = 140049908. Its totient is φ = 140049906.

The previous prime is 140049883. The next prime is 140049911. The reversal of 140049907 is 709940041.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-140049907 is a prime.

It is a super-2 number, since 2×140049907² = 39227952901417298, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (140049947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70024953 + 70024954.

It is an arithmetic number, because the mean of its divisors is an integer number (70024954).

Almost surely, 2^140049907 is an apocalyptic number.

140049907 is a deficient number, since it is larger than the sum of its proper divisors (1).

140049907 is an equidigital number, since it uses as much as digits as its factorization.

140049907 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 140049907 is about 11834.2683339529. The cubic root of 140049907 is about 519.3111032843.

Adding to 140049907 its reverse (709940041), we get a palindrome (849989948).

The spelling of 140049907 in words is "one hundred forty million, forty-nine thousand, nine hundred seven".