144387937 has 8 divisors (see below), whose sum is σ = 151351200. Its totient is φ = 137588640.

The previous prime is 144387923. The next prime is 144387959. The reversal of 144387937 is 739783441.

144387937 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 a de Polignac number, because none of the positive numbers 2^k-144387937 is a prime.

It is a super-2 number, since 2×144387937² = 41695752702231938, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144387907) 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, 39187 + ... + 42712.

It is an arithmetic number, because the mean of its divisors is an integer number (18918900).

Almost surely, 2^144387937 is an apocalyptic number.

It is an amenable number.

144387937 is a deficient number, since it is larger than the sum of its proper divisors (6963263).

144387937 is an equidigital number, since it uses as much as digits as its factorization.

144387937 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81983.

The product of its digits is 508032, while the sum is 46.

The square root of 144387937 is about 12016.1531697961. The cubic root of 144387937 is about 524.6185431635.

The spelling of 144387937 in words is "one hundred forty-four million, three hundred eighty-seven thousand, nine hundred thirty-seven".