144231157 has 8 divisors (see below), whose sum is σ = 168200000. Its totient is φ = 123626412.

The previous prime is 144231151. The next prime is 144231163. The reversal of 144231157 is 751132441.

144231157 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (144231151) and next prime (144231163).

It is not a de Polignac number, because 144231157 - 2²⁷ = 10013429 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144231151) 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, 209907 + ... + 210592.

It is an arithmetic number, because the mean of its divisors is an integer number (21025000).

Almost surely, 2^144231157 is an apocalyptic number.

It is an amenable number.

144231157 is a deficient number, since it is larger than the sum of its proper divisors (23968843).

144231157 is an frugal number, since it uses more digits than its factorization.

144231157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 420520 (or 420506 counting only the distinct ones).

The product of its digits is 3360, while the sum is 28.

The square root of 144231157 is about 12009.6276794912. The cubic root of 144231157 is about 524.4285931246.

Adding to 144231157 its reverse (751132441), we get a palindrome (895363598).

The spelling of 144231157 in words is "one hundred forty-four million, two hundred thirty-one thousand, one hundred fifty-seven".