121896029 has 4 divisors (see below), whose sum is σ = 122359776. Its totient is φ = 121432284.

The previous prime is 121896017. The next prime is 121896043. The reversal of 121896029 is 920698121.

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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121896029 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121895983 and 121896001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121896059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 231479 + ... + 232004.

It is an arithmetic number, because the mean of its divisors is an integer number (30589944).

Almost surely, 2^121896029 is an apocalyptic number.

It is an amenable number.

121896029 is a deficient number, since it is larger than the sum of its proper divisors (463747).

121896029 is an equidigital number, since it uses as much as digits as its factorization.

121896029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 463746.

The product of its (nonzero) digits is 15552, while the sum is 38.

The square root of 121896029 is about 11040.6534679791. The cubic root of 121896029 is about 495.8266349651.

The spelling of 121896029 in words is "one hundred twenty-one million, eight hundred ninety-six thousand, twenty-nine".