144151121 has 8 divisors (see below), whose sum is σ = 148440264. Its totient is φ = 139898880.

The previous prime is 144151069. The next prime is 144151123. The reversal of 144151121 is 121151441.

It can be written as a sum of positive squares in 4 ways, for example, as 4060225 + 140090896 = 2015^2 + 11836^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 144151121 - 2²⁶ = 77042257 is a prime.

It is a super-3 number, since 3×144151121³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 144151093 and 144151102.

It is not an unprimeable number, because it can be changed into a prime (144151123) 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, 1196 + ... + 17021.

It is an arithmetic number, because the mean of its divisors is an integer number (18555033).

Almost surely, 2^144151121 is an apocalyptic number.

It is an amenable number.

144151121 is a deficient number, since it is larger than the sum of its proper divisors (4289143).

144151121 is a wasteful number, since it uses less digits than its factorization.

144151121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18451.

The product of its digits is 160, while the sum is 20.

The square root of 144151121 is about 12006.2950571773. The cubic root of 144151121 is about 524.3315707845.

The spelling of 144151121 in words is "one hundred forty-four million, one hundred fifty-one thousand, one hundred twenty-one".