144151331 has 4 divisors (see below), whose sum is σ = 144269664. Its totient is φ = 144033000.

The previous prime is 144151307. The next prime is 144151339. The reversal of 144151331 is 133151441.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-144151331 is a prime.

It is a super-2 number, since 2×144151331² = 41559212458143122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 144151297 and 144151306.

It is not an unprimeable number, because it can be changed into a prime (144151339) 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 in 3 ways as a sum of consecutive naturals, for example, 57320 + ... + 59781.

It is an arithmetic number, because the mean of its divisors is an integer number (36067416).

Almost surely, 2^144151331 is an apocalyptic number.

144151331 is a deficient number, since it is larger than the sum of its proper divisors (118333).

144151331 is a wasteful number, since it uses less digits than its factorization.

144151331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118332.

The product of its digits is 720, while the sum is 23.

The square root of 144151331 is about 12006.3038025864. The cubic root of 144151331 is about 524.3318254005.

The spelling of 144151331 in words is "one hundred forty-four million, one hundred fifty-one thousand, three hundred thirty-one".