144775842 has 16 divisors (see below), whose sum is σ = 306584352. Its totient is φ = 45419840.

The previous prime is 144775831. The next prime is 144775843. The reversal of 144775842 is 248577441.

It is a junction number, because it is equal to n+sod(n) for n = 144775794 and 144775803.

It is not an unprimeable number, because it can be changed into a prime (144775843) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 709584 + ... + 709787.

It is an arithmetic number, because the mean of its divisors is an integer number (19161522).

Almost surely, 2^144775842 is an apocalyptic number.

144775842 is an abundant number, since it is smaller than the sum of its proper divisors (161808510).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

144775842 is a wasteful number, since it uses less digits than its factorization.

144775842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1419393.

The product of its digits is 250880, while the sum is 42.

The square root of 144775842 is about 12032.2833244568. The cubic root of 144775842 is about 525.0879272232.

The spelling of 144775842 in words is "one hundred forty-four million, seven hundred seventy-five thousand, eight hundred forty-two".