121434144 has 48 divisors (see below), whose sum is σ = 343288512. Its totient is φ = 37363968.

The previous prime is 121434109. The next prime is 121434151. The reversal of 121434144 is 441434121.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a nude number because it is divisible by every one of its digits.

It is a congruent 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, 47404 + ... + 49899.

It is an arithmetic number, because the mean of its divisors is an integer number (7151844).

Almost surely, 2^121434144 is an apocalyptic number.

It is an amenable number.

121434144 is an abundant number, since it is smaller than the sum of its proper divisors (221854368).

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

121434144 is a wasteful number, since it uses less digits than its factorization.

121434144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97329 (or 97321 counting only the distinct ones).

The product of its digits is 1536, while the sum is 24.

The square root of 121434144 is about 11019.7161487944. The cubic root of 121434144 is about 495.1995848565.

Adding to 121434144 its reverse (441434121), we get a palindrome (562868265).

The spelling of 121434144 in words is "one hundred twenty-one million, four hundred thirty-four thousand, one hundred forty-four".