144133477 has 4 divisors (see below), whose sum is σ = 148782976. Its totient is φ = 139483980.

The previous prime is 144133471. The next prime is 144133489. The reversal of 144133477 is 774331441.

144133477 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 774331441 = 13 ⋅59563957.

It is a cyclic number.

It is not a de Polignac number, because 144133477 - 2³ = 144133469 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 (144133471) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2324703 + ... + 2324764.

It is an arithmetic number, because the mean of its divisors is an integer number (37195744).

Almost surely, 2^144133477 is an apocalyptic number.

It is an amenable number.

144133477 is a deficient number, since it is larger than the sum of its proper divisors (4649499).

144133477 is an equidigital number, since it uses as much as digits as its factorization.

144133477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4649498.

The product of its digits is 28224, while the sum is 34.

The square root of 144133477 is about 12005.5602534826. The cubic root of 144133477 is about 524.3101773014.

The spelling of 144133477 in words is "one hundred forty-four million, one hundred thirty-three thousand, four hundred seventy-seven".