144031387 has 2 divisors, whose sum is σ = 144031388. Its totient is φ = 144031386.

The previous prime is 144031337. The next prime is 144031397. The reversal of 144031387 is 783130441.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 144031387 - 2¹¹ = 144029339 is a prime.

It is a super-2 number, since 2×144031387² = 41490080882287538, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (144031337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72015693 + 72015694.

It is an arithmetic number, because the mean of its divisors is an integer number (72015694).

Almost surely, 2^144031387 is an apocalyptic number.

144031387 is a deficient number, since it is larger than the sum of its proper divisors (1).

144031387 is an equidigital number, since it uses as much as digits as its factorization.

144031387 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 144031387 is about 12001.3077204111. The cubic root of 144031387 is about 524.1863581170.

The spelling of 144031387 in words is "one hundred forty-four million, thirty-one thousand, three hundred eighty-seven".