121898832 has 160 divisors (see below), whose sum is σ = 374976000. Its totient is φ = 33707520.

The previous prime is 121898797. The next prime is 121898849. The reversal of 121898832 is 238898121.

Added to its reverse (238898121) it gives a triangular number (360796953 = T₂₆₈₆₂).

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 290719 + ... + 291137.

It is an arithmetic number, because the mean of its divisors is an integer number (2343600).

Almost surely, 2^121898832 is an apocalyptic number.

121898832 is a gapful number since it is divisible by the number (12) 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 121898832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (187488000).

121898832 is an abundant number, since it is smaller than the sum of its proper divisors (253077168).

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

121898832 is a wasteful number, since it uses less digits than its factorization.

121898832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 489 (or 483 counting only the distinct ones).

The product of its digits is 55296, while the sum is 42.

The square root of 121898832 is about 11040.7804071995. The cubic root of 121898832 is about 495.8304354482.

Adding to 121898832 its reverse (238898121), we get a triangular number (360796953 = T₂₆₈₆₂).

The spelling of 121898832 in words is "one hundred twenty-one million, eight hundred ninety-eight thousand, eight hundred thirty-two".