144121131 has 24 divisors (see below), whose sum is σ = 259544064. Its totient is φ = 74867760.

The previous prime is 144121093. The next prime is 144121141. The reversal of 144121131 is 131121441.

144121131 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 144121131 - 2⁶ = 144121067 is a prime.

It is a super-2 number, since 2×144121131² = 41541800801438322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (144121141) 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, 103291 + ... + 104676.

It is an arithmetic number, because the mean of its divisors is an integer number (10814336).

Almost surely, 2^144121131 is an apocalyptic number.

144121131 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

144121131 is a deficient number, since it is larger than the sum of its proper divisors (115422933).

144121131 is a wasteful number, since it uses less digits than its factorization.

144121131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207991 (or 207988 counting only the distinct ones).

The product of its digits is 96, while the sum is 18.

The square root of 144121131 is about 12005.0460640516. The cubic root of 144121131 is about 524.2952066450.

Adding to 144121131 its reverse (131121441), we get a palindrome (275242572).

The spelling of 144121131 in words is "one hundred forty-four million, one hundred twenty-one thousand, one hundred thirty-one".