121512496 has 80 divisors (see below), whose sum is σ = 287553024. Its totient is φ = 48609792.

The previous prime is 121512493. The next prime is 121512497. The reversal of 121512496 is 694215121.

It is not an unprimeable number, because it can be changed into a prime (121512491) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 110220 + ... + 111316.

Almost surely, 2^121512496 is an apocalyptic number.

121512496 is a gapful number since it is divisible by the number (16) 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 121512496, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (143776512).

121512496 is an abundant number, since it is smaller than the sum of its proper divisors (166040528).

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

121512496 is a wasteful number, since it uses less digits than its factorization.

121512496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1178 (or 1172 counting only the distinct ones).

The product of its digits is 4320, while the sum is 31.

The square root of 121512496 is about 11023.2706580216. The cubic root of 121512496 is about 495.3060665393.

The spelling of 121512496 in words is "one hundred twenty-one million, five hundred twelve thousand, four hundred ninety-six".