140115137 has 4 divisors (see below), whose sum is σ = 140743680. Its totient is φ = 139486596.

The previous prime is 140115097. The next prime is 140115161. The reversal of 140115137 is 731511041.

It is a happy number.

140115137 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 140115137 - 2²⁶ = 73006273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140117137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 313937 + ... + 314382.

It is an arithmetic number, because the mean of its divisors is an integer number (35185920).

Almost surely, 2^140115137 is an apocalyptic number.

It is an amenable number.

140115137 is a deficient number, since it is larger than the sum of its proper divisors (628543).

140115137 is an equidigital number, since it uses as much as digits as its factorization.

140115137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 628542.

The product of its (nonzero) digits is 420, while the sum is 23.

The square root of 140115137 is about 11837.0239925414. The cubic root of 140115137 is about 519.3917159891.

Adding to 140115137 its reverse (731511041), we get a palindrome (871626178).

The spelling of 140115137 in words is "one hundred forty million, one hundred fifteen thousand, one hundred thirty-seven".