121232765 has 8 divisors (see below), whose sum is σ = 145955040. Its totient is φ = 96669072.

The previous prime is 121232753. The next prime is 121232773. The reversal of 121232765 is 567232121.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 121232765 - 2²⁰ = 120184189 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37955 + ... + 41024.

It is an arithmetic number, because the mean of its divisors is an integer number (18244380).

Almost surely, 2^121232765 is an apocalyptic number.

It is an amenable number.

121232765 is a deficient number, since it is larger than the sum of its proper divisors (24722275).

121232765 is an equidigital number, since it uses as much as digits as its factorization.

121232765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79291.

The product of its digits is 5040, while the sum is 29.

The square root of 121232765 is about 11010.5751439241. The cubic root of 121232765 is about 494.9256971082.

Adding to 121232765 its reverse (567232121), we get a palindrome (688464886).

The spelling of 121232765 in words is "one hundred twenty-one million, two hundred thirty-two thousand, seven hundred sixty-five".