140422949 has 2 divisors, whose sum is σ = 140422950. Its totient is φ = 140422948.

The previous prime is 140422927. The next prime is 140422951. The reversal of 140422949 is 949224041.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 111154849 + 29268100 = 10543^2 + 5410^2 .

It is a cyclic number.

It is not a de Polignac number, because 140422949 - 2¹² = 140418853 is a prime.

It is a super-5 number, since 5×140422949⁵ (a number of 42 digits) contains 55555 as substring.

Together with 140422951, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140422999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70211474 + 70211475.

It is an arithmetic number, because the mean of its divisors is an integer number (70211475).

Almost surely, 2^140422949 is an apocalyptic number.

It is an amenable number.

140422949 is a deficient number, since it is larger than the sum of its proper divisors (1).

140422949 is an equidigital number, since it uses as much as digits as its factorization.

140422949 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 140422949 is about 11850.0189451325. The cubic root of 140422949 is about 519.7717797832.

The spelling of 140422949 in words is "one hundred forty million, four hundred twenty-two thousand, nine hundred forty-nine".