140115534 has 24 divisors (see below), whose sum is σ = 303447672. Its totient is φ = 43112160.

The previous prime is 140115529. The next prime is 140115551. The reversal of 140115534 is 435511041.

It is a happy number.

140115534 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 68077 + ... + 70104.

It is an arithmetic number, because the mean of its divisors is an integer number (12643653).

Almost surely, 2^140115534 is an apocalyptic number.

140115534 is an abundant number, since it is smaller than the sum of its proper divisors (163332138).

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

140115534 is a wasteful number, since it uses less digits than its factorization.

140115534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138212 (or 138199 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 140115534 is about 11837.0407619472. The cubic root of 140115534 is about 519.3922065340.

Adding to 140115534 its reverse (435511041), we get a palindrome (575626575).

The spelling of 140115534 in words is "one hundred forty million, one hundred fifteen thousand, five hundred thirty-four".