140311233 has 6 divisors (see below), whose sum is σ = 202671794. Its totient is φ = 93540816.

The previous prime is 140311211. The next prime is 140311253. The reversal of 140311233 is 332113041.

140311233 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 99440784 + 40870449 = 9972^2 + 6393^2 .

It is not a de Polignac number, because 140311233 - 2⁶ = 140311169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140311253) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7795060 + ... + 7795077.

Almost surely, 2^140311233 is an apocalyptic number.

It is an amenable number.

140311233 is a deficient number, since it is larger than the sum of its proper divisors (62360561).

140311233 is a wasteful number, since it uses less digits than its factorization.

140311233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15590143 (or 15590140 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 140311233 is about 11845.3042594946. The cubic root of 140311233 is about 519.6339052879.

Adding to 140311233 its reverse (332113041), we get a palindrome (472424274).

The spelling of 140311233 in words is "one hundred forty million, three hundred eleven thousand, two hundred thirty-three".