144157331 has 8 divisors (see below), whose sum is σ = 152766000. Its totient is φ = 135563008.

The previous prime is 144157309. The next prime is 144157337. The reversal of 144157331 is 133751441.

144157331 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 144157331 - 2¹⁰ = 144156307 is a prime.

It is a super-2 number, since 2×144157331² = 41562672162087122, 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 = 144157294 and 144157303.

It is not an unprimeable number, because it can be changed into a prime (144157337) 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, 22655 + ... + 28311.

It is an arithmetic number, because the mean of its divisors is an integer number (19095750).

Almost surely, 2^144157331 is an apocalyptic number.

144157331 is a deficient number, since it is larger than the sum of its proper divisors (8608669).

144157331 is a wasteful number, since it uses less digits than its factorization.

144157331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7173.

The product of its digits is 5040, while the sum is 29.

The square root of 144157331 is about 12006.5536687261. The cubic root of 144157331 is about 524.3391000410.

The spelling of 144157331 in words is "one hundred forty-four million, one hundred fifty-seven thousand, three hundred thirty-one".