144635340077 has 4 divisors (see below), whose sum is σ = 153143301276. Its totient is φ = 136127378880.

The previous prime is 144635340071. The next prime is 144635340107. The reversal of 144635340077 is 770043536441.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 770043536441 = 79151 ⋅9728791.

It can be written as a sum of positive squares in 2 ways, for example, as 129966739081 + 14668600996 = 360509^2 + 121114^2 .

It is a cyclic number.

It is not a de Polignac number, because 144635340077 - 2³⁶ = 75915863341 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144635340071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4253980574 + ... + 4253980607.

It is an arithmetic number, because the mean of its divisors is an integer number (38285825319).

Almost surely, 2^144635340077 is an apocalyptic number.

144635340077 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

144635340077 is a deficient number, since it is larger than the sum of its proper divisors (8507961199).

144635340077 is an equidigital number, since it uses as much as digits as its factorization.

144635340077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8507961198.

The product of its (nonzero) digits is 846720, while the sum is 44.

The spelling of 144635340077 in words is "one hundred forty-four billion, six hundred thirty-five million, three hundred forty thousand, seventy-seven".