140115550 has 12 divisors (see below), whose sum is σ = 260615016. Its totient is φ = 56046200.

The previous prime is 140115529. The next prime is 140115551. The reversal of 140115550 is 55511041.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140115551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1401106 + ... + 1401205.

It is an arithmetic number, because the mean of its divisors is an integer number (21717918).

Almost surely, 2^140115550 is an apocalyptic number.

140115550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

140115550 is a deficient number, since it is larger than the sum of its proper divisors (120499466).

140115550 is a wasteful number, since it uses less digits than its factorization.

140115550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2802323 (or 2802318 counting only the distinct ones).

The product of its (nonzero) digits is 500, while the sum is 22.

The square root of 140115550 is about 11837.0414377918. The cubic root of 140115550 is about 519.3922263041.

Adding to 140115550 its reverse (55511041), we get a palindrome (195626591).

The spelling of 140115550 in words is "one hundred forty million, one hundred fifteen thousand, five hundred fifty".