144769618 has 24 divisors (see below), whose sum is σ = 253567692. Its totient is φ = 61808544.

The previous prime is 144769571. The next prime is 144769619. The reversal of 144769618 is 816967441.

It can be written as a sum of positive squares in 2 ways, for example, as 139783329 + 4986289 = 11823^2 + 2233^2 .

It is a Smith number, since the sum of its digits (46) 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 (144769619) 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, 24480 + ... + 29812.

Almost surely, 2^144769618 is an apocalyptic number.

144769618 is a deficient number, since it is larger than the sum of its proper divisors (108798074).

144769618 is a wasteful number, since it uses less digits than its factorization.

144769618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5626 (or 5619 counting only the distinct ones).

The product of its digits is 290304, while the sum is 46.

The square root of 144769618 is about 12032.0246841502. The cubic root of 144769618 is about 525.0804025007.

The spelling of 144769618 in words is "one hundred forty-four million, seven hundred sixty-nine thousand, six hundred eighteen".