121044156 has 24 divisors (see below), whose sum is σ = 287766864. Its totient is φ = 39586560.

The previous prime is 121044151. The next prime is 121044197. The reversal of 121044156 is 651440121.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121044151) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94525 + ... + 95796.

It is an arithmetic number, because the mean of its divisors is an integer number (11990286).

Almost surely, 2^121044156 is an apocalyptic number.

It is an amenable number.

121044156 is an abundant number, since it is smaller than the sum of its proper divisors (166722708).

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

121044156 is a wasteful number, since it uses less digits than its factorization.

121044156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190381 (or 190379 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 121044156 is about 11002.0069078328. The cubic root of 121044156 is about 494.6689021420.

Adding to 121044156 its reverse (651440121), we get a palindrome (772484277).

The spelling of 121044156 in words is "one hundred twenty-one million, forty-four thousand, one hundred fifty-six".