144331157 has 2 divisors, whose sum is σ = 144331158. Its totient is φ = 144331156.

The previous prime is 144331129. The next prime is 144331217. The reversal of 144331157 is 751133441.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 79673476 + 64657681 = 8926^2 + 8041^2 .

It is a cyclic number.

It is not a de Polignac number, because 144331157 - 2¹⁰ = 144330133 is a prime.

It is equal to p_8143085 and since 144331157 and 8143085 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (144333157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72165578 + 72165579.

It is an arithmetic number, because the mean of its divisors is an integer number (72165579).

Almost surely, 2^144331157 is an apocalyptic number.

It is an amenable number.

144331157 is a deficient number, since it is larger than the sum of its proper divisors (1).

144331157 is an equidigital number, since it uses as much as digits as its factorization.

144331157 is an evil number, because the sum of its binary digits is even.

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

The square root of 144331157 is about 12013.7902845022. The cubic root of 144331157 is about 524.5497660736.

Adding to 144331157 its reverse (751133441), we get a palindrome (895464598).

The spelling of 144331157 in words is "one hundred forty-four million, three hundred thirty-one thousand, one hundred fifty-seven".