144111474 has 80 divisors (see below), whose sum is σ = 356451480. Its totient is φ = 43234560.

The previous prime is 144111449. The next prime is 144111497. The reversal of 144111474 is 474111441.

It can be written as a sum of positive squares in 4 ways, for example, as 62299449 + 81812025 = 7893^2 + 9045^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 85512 + ... + 87180.

Almost surely, 2^144111474 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 144111474, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (178225740).

144111474 is an abundant number, since it is smaller than the sum of its proper divisors (212340006).

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

144111474 is a wasteful number, since it uses less digits than its factorization.

144111474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1737 (or 1728 counting only the distinct ones).

The product of its digits is 1792, while the sum is 27.

The square root of 144111474 is about 12004.6438514435. The cubic root of 144111474 is about 524.2834960516.

The spelling of 144111474 in words is "one hundred forty-four million, one hundred eleven thousand, four hundred seventy-four".