440154849139147 has 2 divisors, whose sum is σ = 440154849139148. Its totient is φ = 440154849139146.

The previous prime is 440154849139141. The next prime is 440154849139211. The reversal of 440154849139147 is 741931948451044.

It is a happy number.

It is an a-pointer prime, because the next prime (440154849139211) can be obtained adding 440154849139147 to its sum of digits (64).

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-440154849139147 is a prime.

It is not a weakly prime, because it can be changed into another prime (440154849139141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 220077424569573 + 220077424569574.

It is an arithmetic number, because the mean of its divisors is an integer number (220077424569574).

Almost surely, 2^{440154849139147} is an apocalyptic number.

440154849139147 is a deficient number, since it is larger than the sum of its proper divisors (1).

440154849139147 is an equidigital number, since it uses as much as digits as its factorization.

440154849139147 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 69672960, while the sum is 64.

The spelling of 440154849139147 in words is "four hundred forty trillion, one hundred fifty-four billion, eight hundred forty-nine million, one hundred thirty-nine thousand, one hundred forty-seven".