121769481 has 16 divisors (see below), whose sum is σ = 165435840. Its totient is φ = 79648320.

The previous prime is 121769471. The next prime is 121769489. The reversal of 121769481 is 184967121.

It is not a de Polignac number, because 121769481 - 2⁵ = 121769449 is a prime.

It is a super-2 number, since 2×121769481² = 29655613006018722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (121769489) 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, 118990 + ... + 120008.

It is an arithmetic number, because the mean of its divisors is an integer number (10339740).

Almost surely, 2^121769481 is an apocalyptic number.

It is an amenable number.

121769481 is a deficient number, since it is larger than the sum of its proper divisors (43666359).

121769481 is a wasteful number, since it uses less digits than its factorization.

121769481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1736.

The product of its digits is 24192, while the sum is 39.

The square root of 121769481 is about 11034.9209784212. The cubic root of 121769481 is about 495.6549925265.

The spelling of 121769481 in words is "one hundred twenty-one million, seven hundred sixty-nine thousand, four hundred eighty-one".