144122904 has 96 divisors (see below), whose sum is σ = 414414000. Its totient is φ = 45121536.

The previous prime is 144122903. The next prime is 144122921. The reversal of 144122904 is 409221441.

It is a happy number.

It is a super-2 number, since 2×144122904² = 41542822914786432, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144122903) 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, 187032 + ... + 187800.

Almost surely, 2^144122904 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 144122904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (207207000).

144122904 is an abundant number, since it is smaller than the sum of its proper divisors (270291096).

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

144122904 is a wasteful number, since it uses less digits than its factorization.

144122904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 937 (or 930 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 144122904 is about 12005.1199077727. The cubic root of 144122904 is about 524.2973566225.

The spelling of 144122904 in words is "one hundred forty-four million, one hundred twenty-two thousand, nine hundred four".