140115136 has 28 divisors (see below), whose sum is σ = 317762128. Its totient is φ = 60049152.

The previous prime is 140115097. The next prime is 140115161. The reversal of 140115136 is 631511041.

It is a tau number, because it is divible by the number of its divisors (28).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 155931 + ... + 156826.

Almost surely, 2^140115136 is an apocalyptic number.

140115136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

140115136 is an abundant number, since it is smaller than the sum of its proper divisors (177646992).

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

140115136 is an equidigital number, since it uses as much as digits as its factorization.

140115136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312776 (or 312766 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 22.

The square root of 140115136 is about 11837.0239503010. The cubic root of 140115136 is about 519.3917147535.

Adding to 140115136 its reverse (631511041), we get a palindrome (771626177).

The spelling of 140115136 in words is "one hundred forty million, one hundred fifteen thousand, one hundred thirty-six".