140522297 has 2 divisors, whose sum is σ = 140522298. Its totient is φ = 140522296.

The previous prime is 140522269. The next prime is 140522359. The reversal of 140522297 is 792225041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 101384761 + 39137536 = 10069^2 + 6256^2 .

It is a cyclic number.

It is not a de Polignac number, because 140522297 - 2¹⁰ = 140521273 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (140522227) 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, 70261148 + 70261149.

It is an arithmetic number, because the mean of its divisors is an integer number (70261149).

Almost surely, 2^140522297 is an apocalyptic number.

It is an amenable number.

140522297 is a deficient number, since it is larger than the sum of its proper divisors (1).

140522297 is an equidigital number, since it uses as much as digits as its factorization.

140522297 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 140522297 is about 11854.2100959954. The cubic root of 140522297 is about 519.8943288728.

The spelling of 140522297 in words is "one hundred forty million, five hundred twenty-two thousand, two hundred ninety-seven".