140226705 has 12 divisors (see below), whose sum is σ = 243059700. Its totient is φ = 74787552.

The previous prime is 140226701. The next prime is 140226719. The reversal of 140226705 is 507622041.

It can be written as a sum of positive squares in 2 ways, for example, as 48986001 + 91240704 = 6999^2 + 9552^2 .

It is not a de Polignac number, because 140226705 - 2² = 140226701 is a prime.

It is not an unprimeable number, because it can be changed into a prime (140226701) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1558030 + ... + 1558119.

It is an arithmetic number, because the mean of its divisors is an integer number (20254975).

Almost surely, 2^140226705 is an apocalyptic number.

140226705 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

140226705 is a deficient number, since it is larger than the sum of its proper divisors (102832995).

140226705 is a wasteful number, since it uses less digits than its factorization.

140226705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3116160 (or 3116157 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 140226705 is about 11841.7357258132. The cubic root of 140226705 is about 519.5295362670.

Adding to 140226705 its reverse (507622041), we get a palindrome (647848746).

The spelling of 140226705 in words is "one hundred forty million, two hundred twenty-six thousand, seven hundred five".