140231826 has 36 divisors (see below), whose sum is σ = 353443662. Its totient is φ = 40065984.

The previous prime is 140231803. The next prime is 140231857. The reversal of 140231826 is 628132041.

140231826 is digitally balanced in base 3, 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., 95355225 + 44876601 = 9765^2 + 6699^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 140231826.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 78615 + ... + 80378.

Almost surely, 2^140231826 is an apocalyptic number.

140231826 is an abundant number, since it is smaller than the sum of its proper divisors (213211836).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

140231826 is a wasteful number, since it uses less digits than its factorization.

140231826 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159015 (or 159005 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 140231826 is about 11841.9519505865. The cubic root of 140231826 is about 519.5358604983.

Adding to 140231826 its reverse (628132041), we get a palindrome (768363867).

The spelling of 140231826 in words is "one hundred forty million, two hundred thirty-one thousand, eight hundred twenty-six".