140225746 has 4 divisors (see below), whose sum is σ = 210338622. Its totient is φ = 70112872.

The previous prime is 140225731. The next prime is 140225749. The reversal of 140225746 is 647522041.

140225746 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 647522041 = 53 ⋅12217397.

It can be written as a sum of positive squares in only one way, i.e., 100220121 + 40005625 = 10011^2 + 6325^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (140225749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35056435 + ... + 35056438.

Almost surely, 2^140225746 is an apocalyptic number.

140225746 is a deficient number, since it is larger than the sum of its proper divisors (70112876).

140225746 is an equidigital number, since it uses as much as digits as its factorization.

140225746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70112875.

The product of its (nonzero) digits is 13440, while the sum is 31.

The square root of 140225746 is about 11841.6952333692. The cubic root of 140225746 is about 519.5283519230.

Adding to 140225746 its reverse (647522041), we get a palindrome (787747787).

The spelling of 140225746 in words is "one hundred forty million, two hundred twenty-five thousand, seven hundred forty-six".