121906896 has 40 divisors (see below), whose sum is σ = 316598784. Its totient is φ = 40419840.

The previous prime is 121906891. The next prime is 121906901. The reversal of 121906896 is 698609121.

It is an interprime number because it is at equal distance from previous prime (121906891) and next prime (121906901).

It is a super-2 number, since 2×121906896² = 29722582584709632, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121906891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2520 + ... + 15816.

Almost surely, 2^121906896 is an apocalyptic number.

121906896 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

121906896 is an abundant number, since it is smaller than the sum of its proper divisors (194691888).

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

121906896 is a wasteful number, since it uses less digits than its factorization.

121906896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13499 (or 13493 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 42.

The square root of 121906896 is about 11041.1455927363. The cubic root of 121906896 is about 495.8413688001.

The spelling of 121906896 in words is "one hundred twenty-one million, nine hundred six thousand, eight hundred ninety-six".