140801956 has 27 divisors (see below), whose sum is σ = 262502499. Its totient is φ = 66069888.

The previous prime is 140801923. The next prime is 140801957. The reversal of 140801956 is 659108041.

The square root of 140801956 is 11866.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 37088100 + 103713856 = 6090^2 + 10184^2 .

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140801957) by changing a digit.

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 8 ways as a sum of consecutive naturals, for example, 403270 + ... + 403618.

Almost surely, 2^140801956 is an apocalyptic number.

140801956 is the 11866-th square number.

It is an amenable number.

140801956 is a deficient number, since it is larger than the sum of its proper divisors (121700543).

140801956 is an equidigital number, since it uses as much as digits as its factorization.

140801956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 736 (or 368 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 34.

The cubic root of 140801956 is about 520.2389877795.

Adding to 140801956 its reverse (659108041), we get a palindrome (799909997).

The spelling of 140801956 in words is "one hundred forty million, eight hundred one thousand, nine hundred fifty-six".