140722279 has 2 divisors, whose sum is σ = 140722280. Its totient is φ = 140722278.

The previous prime is 140722249. The next prime is 140722289. The reversal of 140722279 is 972227041.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 140722279 - 2⁵ = 140722247 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140722229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70361139 + 70361140.

It is an arithmetic number, because the mean of its divisors is an integer number (70361140).

Almost surely, 2^140722279 is an apocalyptic number.

140722279 is a deficient number, since it is larger than the sum of its proper divisors (1).

140722279 is an equidigital number, since it uses as much as digits as its factorization.

140722279 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14112, while the sum is 34.

The square root of 140722279 is about 11862.6421593168. The cubic root of 140722279 is about 520.1408383308.

The spelling of 140722279 in words is "one hundred forty million, seven hundred twenty-two thousand, two hundred seventy-nine".