144531377 has 2 divisors, whose sum is σ = 144531378. Its totient is φ = 144531376.

The previous prime is 144531367. The next prime is 144531391. The reversal of 144531377 is 773135441.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 142110241 + 2421136 = 11921^2 + 1556^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-144531377 is a prime.

It is a super-2 number, since 2×144531377² = 41778637875032258, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (144531307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72265688 + 72265689.

It is an arithmetic number, because the mean of its divisors is an integer number (72265689).

Almost surely, 2^144531377 is an apocalyptic number.

It is an amenable number.

144531377 is a deficient number, since it is larger than the sum of its proper divisors (1).

144531377 is an equidigital number, since it uses as much as digits as its factorization.

144531377 is an evil number, because the sum of its binary digits is even.

The product of its digits is 35280, while the sum is 35.

The square root of 144531377 is about 12022.1203204759. The cubic root of 144531377 is about 524.7922104381.

The spelling of 144531377 in words is "one hundred forty-four million, five hundred thirty-one thousand, three hundred seventy-seven".