140043752 has 8 divisors (see below), whose sum is σ = 262582050. Its totient is φ = 70021872.

The previous prime is 140043731. The next prime is 140043763. The reversal of 140043752 is 257340041.

It can be written as a sum of positive squares in only one way, i.e., 140043556 + 196 = 11834^2 + 14^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×140043752² = 39224504948475008, which contains 22 as substring.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 8752727 + ... + 8752742.

Almost surely, 2^140043752 is an apocalyptic number.

It is an amenable number.

140043752 is a deficient number, since it is larger than the sum of its proper divisors (122538298).

140043752 is a wasteful number, since it uses less digits than its factorization.

140043752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17505475 (or 17505471 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 140043752 is about 11834.0082812207. The cubic root of 140043752 is about 519.3034955042.

Adding to 140043752 its reverse (257340041), we get a palindrome (397383793).

The spelling of 140043752 in words is "one hundred forty million, forty-three thousand, seven hundred fifty-two".