144135475 has 24 divisors (see below), whose sum is σ = 196558848. Its totient is φ = 103975200.

The previous prime is 144135473. The next prime is 144135487. The reversal of 144135475 is 574531441.

144135475 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 144135475 - 2¹ = 144135473 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 144135475.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144135473) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 32862 + ... + 36988.

It is an arithmetic number, because the mean of its divisors is an integer number (8189952).

Almost surely, 2^144135475 is an apocalyptic number.

144135475 is a deficient number, since it is larger than the sum of its proper divisors (52423373).

144135475 is a wasteful number, since it uses less digits than its factorization.

144135475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4275 (or 4270 counting only the distinct ones).

The product of its digits is 33600, while the sum is 34.

The square root of 144135475 is about 12005.6434646378. The cubic root of 144135475 is about 524.3125999791.

The spelling of 144135475 in words is "one hundred forty-four million, one hundred thirty-five thousand, four hundred seventy-five".