121413500 has 48 divisors (see below), whose sum is σ = 285579840. Its totient is φ = 44827200.

The previous prime is 121413497. The next prime is 121413503. The reversal of 121413500 is 5314121.

It is an interprime number because it is at equal distance from previous prime (121413497) and next prime (121413503).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121413503) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2840 + ... + 15839.

It is an arithmetic number, because the mean of its divisors is an integer number (5949580).

Almost surely, 2^121413500 is an apocalyptic number.

121413500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121413500 is an abundant number, since it is smaller than the sum of its proper divisors (164166340).

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

121413500 is a wasteful number, since it uses less digits than its factorization.

121413500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18711 (or 18699 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 121413500 is about 11018.7794242375. The cubic root of 121413500 is about 495.1715216906.

Adding to 121413500 its reverse (5314121), we get a palindrome (126727621).

The spelling of 121413500 in words is "one hundred twenty-one million, four hundred thirteen thousand, five hundred".