121442634 has 12 divisors (see below), whose sum is σ = 263125746. Its totient is φ = 40480872.

The previous prime is 121442627. The next prime is 121442639. The reversal of 121442634 is 436244121.

It is a happy number.

121442634 is a `hidden beast` number, since 1 + 21 + 4 + 4 + 2 + 634 = 666.

It can be written as a sum of positive squares in only one way, i.e., 73874025 + 47568609 = 8595^2 + 6897^2 .

It is a junction number, because it is equal to n+sod(n) for n = 121442598 and 121442607.

It is not an unprimeable number, because it can be changed into a prime (121442639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3373389 + ... + 3373424.

Almost surely, 2^121442634 is an apocalyptic number.

121442634 is an abundant number, since it is smaller than the sum of its proper divisors (141683112).

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

121442634 is a wasteful number, since it uses less digits than its factorization.

121442634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6746821 (or 6746818 counting only the distinct ones).

The product of its digits is 4608, while the sum is 27.

The square root of 121442634 is about 11020.1013606954. The cubic root of 121442634 is about 495.2111251212.

Adding to 121442634 its reverse (436244121), we get a palindrome (557686755).

The spelling of 121442634 in words is "one hundred twenty-one million, four hundred forty-two thousand, six hundred thirty-four".