121171480 has 16 divisors (see below), whose sum is σ = 272635920. Its totient is φ = 48468576.

The previous prime is 121171469. The next prime is 121171489. The reversal of 121171480 is 84171121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121171489) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1514604 + ... + 1514683.

It is an arithmetic number, because the mean of its divisors is an integer number (17039745).

Almost surely, 2^121171480 is an apocalyptic number.

121171480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121171480 is an abundant number, since it is smaller than the sum of its proper divisors (151464440).

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

121171480 is a wasteful number, since it uses less digits than its factorization.

121171480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3029298 (or 3029294 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 25.

The square root of 121171480 is about 11007.7917858215. The cubic root of 121171480 is about 494.8422855712.

The spelling of 121171480 in words is "one hundred twenty-one million, one hundred seventy-one thousand, four hundred eighty".