121646898 has 24 divisors (see below), whose sum is σ = 270693228. Its totient is φ = 39452832.

The previous prime is 121646893. The next prime is 121646923. The reversal of 121646898 is 898646121.

It can be written as a sum of positive squares in 2 ways, for example, as 85322169 + 36324729 = 9237^2 + 6027^2 .

It is not an unprimeable number, because it can be changed into a prime (121646893) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 90661 + ... + 91992.

Almost surely, 2^121646898 is an apocalyptic number.

121646898 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

121646898 is an abundant number, since it is smaller than the sum of its proper divisors (149046330).

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

121646898 is a wasteful number, since it uses less digits than its factorization.

121646898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182698 (or 182695 counting only the distinct ones).

The product of its digits is 165888, while the sum is 45.

The square root of 121646898 is about 11029.3652582549. The cubic root of 121646898 is about 495.4886145607.

The spelling of 121646898 in words is "one hundred twenty-one million, six hundred forty-six thousand, eight hundred ninety-eight".