144971946 has 48 divisors (see below), whose sum is σ = 362366784. Its totient is φ = 41029632.

The previous prime is 144971917. The next prime is 144971993. The reversal of 144971946 is 649179441.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8106 + ... + 18858.

It is an arithmetic number, because the mean of its divisors is an integer number (7549308).

Almost surely, 2^144971946 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 144971946, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (181183392).

144971946 is an abundant number, since it is smaller than the sum of its proper divisors (217394838).

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

144971946 is a wasteful number, since it uses less digits than its factorization.

144971946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10875 (or 10872 counting only the distinct ones).

The product of its digits is 217728, while the sum is 45.

The square root of 144971946 is about 12040.4296434969. The cubic root of 144971946 is about 525.3249036492.

The spelling of 144971946 in words is "one hundred forty-four million, nine hundred seventy-one thousand, nine hundred forty-six".