140739226 has 8 divisors (see below), whose sum is σ = 223527060. Its totient is φ = 66230208.

The previous prime is 140739173. The next prime is 140739227. The reversal of 140739226 is 622937041.

It can be written as a sum of positive squares in 2 ways, for example, as 135699201 + 5040025 = 11649^2 + 2245^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Harshad number since it is a multiple of its sum of digits (34), and also a Moran number because the ratio is a prime number: 4139389 = 140739226 / (1 + 4 + 0 + 7 + 3 + 9 + 2 + 2 + 6).

It is a junction number, because it is equal to n+sod(n) for n = 140739191 and 140739200.

It is not an unprimeable number, because it can be changed into a prime (140739227) 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 in 3 ways as a sum of consecutive naturals, for example, 2069661 + ... + 2069728.

Almost surely, 2^140739226 is an apocalyptic number.

140739226 is a deficient number, since it is larger than the sum of its proper divisors (82787834).

140739226 is a wasteful number, since it uses less digits than its factorization.

140739226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4139408.

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 140739226 is about 11863.3564390521. The cubic root of 140739226 is about 520.1617174529.

The spelling of 140739226 in words is "one hundred forty million, seven hundred thirty-nine thousand, two hundred twenty-six".