140226937 has 2 divisors, whose sum is σ = 140226938. Its totient is φ = 140226936.

The previous prime is 140226901. The next prime is 140226943. The reversal of 140226937 is 739622041.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 137733696 + 2493241 = 11736^2 + 1579^2 .

It is an emirp because it is prime and its reverse (739622041) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 140226937 - 2⁷ = 140226809 is a prime.

It is not a weakly prime, because it can be changed into another prime (140220937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70113468 + 70113469.

It is an arithmetic number, because the mean of its divisors is an integer number (70113469).

Almost surely, 2^140226937 is an apocalyptic number.

It is an amenable number.

140226937 is a deficient number, since it is larger than the sum of its proper divisors (1).

140226937 is an equidigital number, since it uses as much as digits as its factorization.

140226937 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 140226937 is about 11841.7455216704. The cubic root of 140226937 is about 519.5298227811.

Adding to 140226937 its reverse (739622041), we get a palindrome (879848978).

The spelling of 140226937 in words is "one hundred forty million, two hundred twenty-six thousand, nine hundred thirty-seven".