121769964 has 54 divisors (see below), whose sum is σ = 312195156. Its totient is φ = 40019280.

The previous prime is 121769957. The next prime is 121769971. The reversal of 121769964 is 469967121.

It is an interprime number because it is at equal distance from previous prime (121769957) and next prime (121769971).

It is a super-2 number, since 2×121769964² = 29655848265122592, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 247759 + ... + 248249.

Almost surely, 2^121769964 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121769964, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (156097578).

121769964 is an abundant number, since it is smaller than the sum of its proper divisors (190425192).

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

121769964 is a wasteful number, since it uses less digits than its factorization.

121769964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 667 (or 579 counting only the distinct ones).

The product of its digits is 163296, while the sum is 45.

The square root of 121769964 is about 11034.9428634678. The cubic root of 121769964 is about 495.6556478660.

The spelling of 121769964 in words is "one hundred twenty-one million, seven hundred sixty-nine thousand, nine hundred sixty-four".