140522299 has 4 divisors (see below), whose sum is σ = 142447336. Its totient is φ = 138597264.

The previous prime is 140522297. The next prime is 140522359. The reversal of 140522299 is 992225041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 992225041 = 37 ⋅26816893.

It is a cyclic number.

It is not a de Polignac number, because 140522299 - 2¹ = 140522297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140522297) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 962409 + ... + 962554.

It is an arithmetic number, because the mean of its divisors is an integer number (35611834).

Almost surely, 2^140522299 is an apocalyptic number.

140522299 is a deficient number, since it is larger than the sum of its proper divisors (1925037).

140522299 is an equidigital number, since it uses as much as digits as its factorization.

140522299 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1925036.

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 140522299 is about 11854.2101803536. The cubic root of 140522299 is about 519.8943313393.

The spelling of 140522299 in words is "one hundred forty million, five hundred twenty-two thousand, two hundred ninety-nine".