144800731 has 2 divisors, whose sum is σ = 144800732. Its totient is φ = 144800730.

The previous prime is 144800707. The next prime is 144800819. The reversal of 144800731 is 137008441.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 144800731 - 2¹³ = 144792539 is a prime.

It is a super-2 number, since 2×144800731² = 41934503396268722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 144800731.

It is not a weakly prime, because it can be changed into another prime (144800431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72400365 + 72400366.

It is an arithmetic number, because the mean of its divisors is an integer number (72400366).

Almost surely, 2^144800731 is an apocalyptic number.

144800731 is a deficient number, since it is larger than the sum of its proper divisors (1).

144800731 is an equidigital number, since it uses as much as digits as its factorization.

144800731 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 144800731 is about 12033.3175392325. The cubic root of 144800731 is about 525.1180154948.

The spelling of 144800731 in words is "one hundred forty-four million, eight hundred thousand, seven hundred thirty-one".