121413140 has 24 divisors (see below), whose sum is σ = 263760840. Its totient is φ = 46890368.

The previous prime is 121413139. The next prime is 121413163. The reversal of 121413140 is 41314121.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 47831056 + 73582084 = 6916^2 + 8578^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104087 + ... + 105246.

It is an arithmetic number, because the mean of its divisors is an integer number (10990035).

Almost surely, 2^121413140 is an apocalyptic number.

121413140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121413140 is an abundant number, since it is smaller than the sum of its proper divisors (142347700).

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

121413140 is a wasteful number, since it uses less digits than its factorization.

121413140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209371 (or 209369 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 121413140 is about 11018.7630884778. The cubic root of 121413140 is about 495.1710322834.

Adding to 121413140 its reverse (41314121), we get a palindrome (162727261).

The spelling of 121413140 in words is "one hundred twenty-one million, four hundred thirteen thousand, one hundred forty".