140135456 has 12 divisors (see below), whose sum is σ = 275891742. Its totient is φ = 70067712.

The previous prime is 140135447. The next prime is 140135459. The reversal of 140135456 is 654531041.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 119159056 + 20976400 = 10916^2 + 4580^2 .

It is not an unprimeable number, because it can be changed into a prime (140135459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2189585 + ... + 2189648.

Almost surely, 2^140135456 is an apocalyptic number.

140135456 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

140135456 is a deficient number, since it is larger than the sum of its proper divisors (135756286).

140135456 is an equidigital number, since it uses as much as digits as its factorization.

140135456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4379243 (or 4379235 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 140135456 is about 11837.8822430365. The cubic root of 140135456 is about 519.4168215568.

Adding to 140135456 its reverse (654531041), we get a palindrome (794666497).

The spelling of 140135456 in words is "one hundred forty million, one hundred thirty-five thousand, four hundred fifty-six".