121544045 has 16 divisors (see below), whose sum is σ = 175463040. Its totient is φ = 78957504.

The previous prime is 121544041. The next prime is 121544053. The reversal of 121544045 is 540445121.

It is a cyclic number.

It is not a de Polignac number, because 121544045 - 2² = 121544041 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121544041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 90722 + ... + 92051.

It is an arithmetic number, because the mean of its divisors is an integer number (10966440).

Almost surely, 2^121544045 is an apocalyptic number.

It is an amenable number.

121544045 is a deficient number, since it is larger than the sum of its proper divisors (53918995).

121544045 is a wasteful number, since it uses less digits than its factorization.

121544045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182804.

The product of its (nonzero) digits is 3200, while the sum is 26.

The square root of 121544045 is about 11024.7015832629. The cubic root of 121544045 is about 495.3489292336.

Adding to 121544045 its reverse (540445121), we get a palindrome (661989166).

The spelling of 121544045 in words is "one hundred twenty-one million, five hundred forty-four thousand, forty-five".