121471488 has 200 divisors, whose sum is σ = 378775980. Its totient is φ = 38707200.

The previous prime is 121471421. The next prime is 121471507. The reversal of 121471488 is 884174121.

It can be written as a sum of positive squares in 2 ways, for example, as 110502144 + 10969344 = 10512^2 + 3312^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1202638 + ... + 1202738.

Almost surely, 2^121471488 is an apocalyptic number.

121471488 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121471488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (189387990).

121471488 is an abundant number, since it is smaller than the sum of its proper divisors (257304492).

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

121471488 is an equidigital number, since it uses as much as digits as its factorization.

121471488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160 (or 135 counting only the distinct ones).

The product of its digits is 14336, while the sum is 36.

The square root of 121471488 is about 11021.4104360558. The cubic root of 121471488 is about 495.2503416902.

The spelling of 121471488 in words is "one hundred twenty-one million, four hundred seventy-one thousand, four hundred eighty-eight".