140259266 has 12 divisors (see below), whose sum is σ = 244738278. Its totient is φ = 60111072.

The previous prime is 140259239. The next prime is 140259271. The reversal of 140259266 is 662952041.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 117267241 + 22992025 = 10829^2 + 4795^2 .

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 715511 + ... + 715706.

Almost surely, 2^140259266 is an apocalyptic number.

140259266 is a deficient number, since it is larger than the sum of its proper divisors (104479012).

140259266 is a wasteful number, since it uses less digits than its factorization.

140259266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1431233 (or 1431226 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 140259266 is about 11843.1104866923. The cubic root of 140259266 is about 519.5697451845.

The spelling of 140259266 in words is "one hundred forty million, two hundred fifty-nine thousand, two hundred sixty-six".