121852040 has 16 divisors (see below), whose sum is σ = 274167180. Its totient is φ = 48740800.

The previous prime is 121852033. The next prime is 121852057. The reversal of 121852040 is 40258121.

It can be written as a sum of positive squares in 2 ways, for example, as 113337316 + 8514724 = 10646^2 + 2918^2 .

It is a junction number, because it is equal to n+sod(n) for n = 121851997 and 121852015.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1523111 + ... + 1523190.

Almost surely, 2^121852040 is an apocalyptic number.

121852040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121852040 is an abundant number, since it is smaller than the sum of its proper divisors (152315140).

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

121852040 is a wasteful number, since it uses less digits than its factorization.

121852040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3046312 (or 3046308 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 23.

The square root of 121852040 is about 11038.6611507012. The cubic root of 121852040 is about 495.7669842879.

The spelling of 121852040 in words is "one hundred twenty-one million, eight hundred fifty-two thousand, forty".