140303121 has 32 divisors (see below), whose sum is σ = 221952000. Its totient is φ = 78780240.

The previous prime is 140303099. The next prime is 140303129. The reversal of 140303121 is 121303041.

It is not a de Polignac number, because 140303121 - 2¹⁸ = 140040977 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 140303121.

It is not an unprimeable number, because it can be changed into a prime (140303129) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 59556 + ... + 61866.

It is an arithmetic number, because the mean of its divisors is an integer number (6936000).

Almost surely, 2^140303121 is an apocalyptic number.

It is an amenable number.

140303121 is a deficient number, since it is larger than the sum of its proper divisors (81648879).

140303121 is an equidigital number, since it uses as much as digits as its factorization.

140303121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2394 (or 2380 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 140303121 is about 11844.9618403775. The cubic root of 140303121 is about 519.6238909995.

Adding to 140303121 its reverse (121303041), we get a palindrome (261606162).

The spelling of 140303121 in words is "one hundred forty million, three hundred three thousand, one hundred twenty-one".