140443331 has 16 divisors (see below), whose sum is σ = 162693120. Its totient is φ = 118752480.

The previous prime is 140443321. The next prime is 140443343. The reversal of 140443331 is 133344041.

It is not a de Polignac number, because 140443331 - 2¹⁴ = 140426947 is a prime.

It is a super-2 number, since 2×140443331² = 39448658444751122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 140443297 and 140443306.

It is not an unprimeable number, because it can be changed into a prime (140443301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 212141 + ... + 212801.

It is an arithmetic number, because the mean of its divisors is an integer number (10168320).

Almost surely, 2^140443331 is an apocalyptic number.

140443331 is a deficient number, since it is larger than the sum of its proper divisors (22249789).

140443331 is a wasteful number, since it uses less digits than its factorization.

140443331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1034.

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 140443331 is about 11850.8789125533. The cubic root of 140443331 is about 519.7969263754.

Adding to 140443331 its reverse (133344041), we get a palindrome (273787372).

The spelling of 140443331 in words is "one hundred forty million, four hundred forty-three thousand, three hundred thirty-one".