121932669 has 4 divisors (see below), whose sum is σ = 162576896. Its totient is φ = 81288444.

The previous prime is 121932659. The next prime is 121932691. The reversal of 121932669 is 966239121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 121932669 - 2⁸ = 121932413 is a prime.

It is a super-2 number, since 2×121932669² = 29735151538927122, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121932659) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20322109 + ... + 20322114.

It is an arithmetic number, because the mean of its divisors is an integer number (40644224).

Almost surely, 2^121932669 is an apocalyptic number.

It is an amenable number.

121932669 is a deficient number, since it is larger than the sum of its proper divisors (40644227).

121932669 is an equidigital number, since it uses as much as digits as its factorization.

121932669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40644226.

The product of its digits is 34992, while the sum is 39.

The square root of 121932669 is about 11042.3126653795. The cubic root of 121932669 is about 495.8763091782.

The spelling of 121932669 in words is "one hundred twenty-one million, nine hundred thirty-two thousand, six hundred sixty-nine".