121153434 has 16 divisors (see below), whose sum is σ = 243564672. Its totient is φ = 40174848.

The previous prime is 121153427. The next prime is 121153453. The reversal of 121153434 is 434351121.

It is a happy 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, 51154 + ... + 53469.

It is an arithmetic number, because the mean of its divisors is an integer number (15222792).

Almost surely, 2^121153434 is an apocalyptic number.

121153434 is an abundant number, since it is smaller than the sum of its proper divisors (122411238).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121153434 is a wasteful number, since it uses less digits than its factorization.

121153434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104821.

The product of its digits is 1440, while the sum is 24.

The square root of 121153434 is about 11006.9720631970. The cubic root of 121153434 is about 494.8177188244.

It can be divided in two parts, 1211 and 53434, that added together give a palindrome (54645).

The spelling of 121153434 in words is "one hundred twenty-one million, one hundred fifty-three thousand, four hundred thirty-four".