144807077 has 4 divisors (see below), whose sum is σ = 147539340. Its totient is φ = 142074816.

The previous prime is 144807073. The next prime is 144807097. The reversal of 144807077 is 770708441.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 126540001 + 18267076 = 11249^2 + 4274^2 .

It is a cyclic number.

It is not a de Polignac number, because 144807077 - 2² = 144807073 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 144807077.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144807073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1366052 + ... + 1366157.

It is an arithmetic number, because the mean of its divisors is an integer number (36884835).

Almost surely, 2^144807077 is an apocalyptic number.

It is an amenable number.

144807077 is a deficient number, since it is larger than the sum of its proper divisors (2732263).

144807077 is an equidigital number, since it uses as much as digits as its factorization.

144807077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2732262.

The product of its (nonzero) digits is 43904, while the sum is 38.

The square root of 144807077 is about 12033.5812209001. The cubic root of 144807077 is about 525.1256866123.

The spelling of 144807077 in words is "one hundred forty-four million, eight hundred seven thousand, seventy-seven".