121115634 has 32 divisors (see below), whose sum is σ = 246602880. Its totient is φ = 39648000.

The previous prime is 121115597. The next prime is 121115641. The reversal of 121115634 is 436511121.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 170472 + ... + 171180.

It is an arithmetic number, because the mean of its divisors is an integer number (7706340).

Almost surely, 2^121115634 is an apocalyptic number.

121115634 is an abundant number, since it is smaller than the sum of its proper divisors (125487246).

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

121115634 is a wasteful number, since it uses less digits than its factorization.

121115634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1186.

The product of its digits is 720, while the sum is 24.

The square root of 121115634 is about 11005.2548357591. The cubic root of 121115634 is about 494.7662522536.

Adding to 121115634 its reverse (436511121), we get a palindrome (557626755).

The spelling of 121115634 in words is "one hundred twenty-one million, one hundred fifteen thousand, six hundred thirty-four".