144475587 has 12 divisors (see below), whose sum is σ = 209895504. Its totient is φ = 95759280.

The previous prime is 144475579. The next prime is 144475589. The reversal of 144475587 is 785574441.

It is not a de Polignac number, because 144475587 - 2³ = 144475579 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (144475589) 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, 44839 + ... + 47952.

It is an arithmetic number, because the mean of its divisors is an integer number (17491292).

Almost surely, 2^144475587 is an apocalyptic number.

144475587 is a deficient number, since it is larger than the sum of its proper divisors (65419917).

144475587 is a wasteful number, since it uses less digits than its factorization.

144475587 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92970 (or 92967 counting only the distinct ones).

The product of its digits is 627200, while the sum is 45.

The square root of 144475587 is about 12019.7997903459. The cubic root of 144475587 is about 524.7246774082.

The spelling of 144475587 in words is "one hundred forty-four million, four hundred seventy-five thousand, five hundred eighty-seven".