144661473 has 24 divisors (see below), whose sum is σ = 229484736. Its totient is φ = 87084000.

The previous prime is 144661463. The next prime is 144661477. The reversal of 144661473 is 374166441.

It is not a de Polignac number, because 144661473 - 2⁴ = 144661457 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (144661477) 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, 10111 + ... + 19787.

It is an arithmetic number, because the mean of its divisors is an integer number (9561864).

Almost surely, 2^144661473 is an apocalyptic number.

It is an amenable number.

144661473 is a deficient number, since it is larger than the sum of its proper divisors (84823263).

144661473 is a wasteful number, since it uses less digits than its factorization.

144661473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9845 (or 9842 counting only the distinct ones).

The product of its digits is 48384, while the sum is 36.

The square root of 144661473 is about 12027.5297962632. The cubic root of 144661473 is about 524.9496223769.

The spelling of 144661473 in words is "one hundred forty-four million, six hundred sixty-one thousand, four hundred seventy-three".