121769965 has 8 divisors (see below), whose sum is σ = 147021408. Its totient is φ = 96817680.

The previous prime is 121769957. The next prime is 121769971. The reversal of 121769965 is 569967121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 121769965 - 2³ = 121769957 is a prime.

It is a super-2 number, since 2×121769965² = 29655848752202450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73891 + ... + 75520.

It is an arithmetic number, because the mean of its divisors is an integer number (18377676).

Almost surely, 2^121769965 is an apocalyptic number.

It is an amenable number.

121769965 is a deficient number, since it is larger than the sum of its proper divisors (25251443).

121769965 is a wasteful number, since it uses less digits than its factorization.

121769965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149579.

The product of its digits is 204120, while the sum is 46.

The square root of 121769965 is about 11034.9429087785. The cubic root of 121769965 is about 495.6556492228.

The spelling of 121769965 in words is "one hundred twenty-one million, seven hundred sixty-nine thousand, nine hundred sixty-five".