121618032 has 20 divisors (see below), whose sum is σ = 314180040. Its totient is φ = 40539328.

The previous prime is 121618027. The next prime is 121618033. The reversal of 121618032 is 230816121.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 121617993 and 121618011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121618033) 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, 1266807 + ... + 1266902.

It is an arithmetic number, because the mean of its divisors is an integer number (15709002).

Almost surely, 2^121618032 is an apocalyptic number.

121618032 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121618032 is an abundant number, since it is smaller than the sum of its proper divisors (192562008).

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

121618032 is a wasteful number, since it uses less digits than its factorization.

121618032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2533720 (or 2533714 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 121618032 is about 11028.0565830975. The cubic root of 121618032 is about 495.4494194092.

The spelling of 121618032 in words is "one hundred twenty-one million, six hundred eighteen thousand, thirty-two".