144697487 has 12 divisors (see below), whose sum is σ = 162932448. Its totient is φ = 128330400.

The previous prime is 144697481. The next prime is 144697499. The reversal of 144697487 is 784796441.

It is not a de Polignac number, because 144697487 - 2¹⁰ = 144696463 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 (144697481) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9623 + ... + 19544.

It is an arithmetic number, because the mean of its divisors is an integer number (13577704).

Almost surely, 2^144697487 is an apocalyptic number.

144697487 is a deficient number, since it is larger than the sum of its proper divisors (18234961).

144697487 is a wasteful number, since it uses less digits than its factorization.

144697487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29230 (or 29219 counting only the distinct ones).

The product of its digits is 1354752, while the sum is 50.

The square root of 144697487 is about 12029.0268517449. The cubic root of 144697487 is about 524.9931814685.

The spelling of 144697487 in words is "one hundred forty-four million, six hundred ninety-seven thousand, four hundred eighty-seven".