144751680 has 84 divisors (see below), whose sum is σ = 497895372. Its totient is φ = 38599680.

The previous prime is 144751643. The next prime is 144751687. The reversal of 144751680 is 86157441.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 39237696 + 105513984 = 6264^2 + 10272^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (144751687) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22251 + ... + 28010.

Almost surely, 2^144751680 is an apocalyptic number.

144751680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

144751680 is an abundant number, since it is smaller than the sum of its proper divisors (353143692).

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

144751680 is a wasteful number, since it uses less digits than its factorization.

144751680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50284 (or 50271 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The square root of 144751680 is about 12031.2792337307. The cubic root of 144751680 is about 525.0587145217.

The spelling of 144751680 in words is "one hundred forty-four million, seven hundred fifty-one thousand, six hundred eighty".