121145044 has 6 divisors (see below), whose sum is σ = 212003834. Its totient is φ = 60572520.

The previous prime is 121145041. The next prime is 121145053. The reversal of 121145044 is 440541121.

It can be written as a sum of positive squares in only one way, i.e., 63202500 + 57942544 = 7950^2 + 7612^2 .

It is a super-3 number, since 3×121145044³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121145041) 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 as a sum of consecutive naturals, namely, 15143127 + ... + 15143134.

Almost surely, 2^121145044 is an apocalyptic number.

It is an amenable number.

121145044 is a deficient number, since it is larger than the sum of its proper divisors (90858790).

121145044 is a wasteful number, since it uses less digits than its factorization.

121145044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30286265 (or 30286263 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 121145044 is about 11006.5909345265. The cubic root of 121145044 is about 494.8062963486.

Adding to 121145044 its reverse (440541121), we get a palindrome (561686165).

The spelling of 121145044 in words is "one hundred twenty-one million, one hundred forty-five thousand, forty-four".