144536121 has 24 divisors (see below), whose sum is σ = 211273920. Its totient is φ = 95212896.

The previous prime is 144536081. The next prime is 144536129. The reversal of 144536121 is 121635441.

It is a happy number.

144536121 is a `hidden beast` number, since 1 + 4 + 4 + 536 + 121 = 666.

144536121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 144536121 - 2¹¹ = 144534073 is a prime.

It is not an unprimeable number, because it can be changed into a prime (144536129) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 537175 + ... + 537443.

It is an arithmetic number, because the mean of its divisors is an integer number (8803080).

Almost surely, 2^144536121 is an apocalyptic number.

It is an amenable number.

144536121 is a deficient number, since it is larger than the sum of its proper divisors (66737799).

144536121 is a wasteful number, since it uses less digits than its factorization.

144536121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 765 (or 762 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 144536121 is about 12022.3176218232. The cubic root of 144536121 is about 524.7979521832.

The spelling of 144536121 in words is "one hundred forty-four million, five hundred thirty-six thousand, one hundred twenty-one".