144947314139 has 4 divisors (see below), whose sum is σ = 145008813024. Its totient is φ = 144885815256.

The previous prime is 144947314121. The next prime is 144947314159. The reversal of 144947314139 is 931413749441.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 931413749441 = 7 ⋅133059107063.

It is a cyclic number.

It is not a de Polignac number, because 144947314139 - 2¹² = 144947310043 is a prime.

It is a super-2 number, since 2×144947314139² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144947314159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30745907 + ... + 30750620.

It is an arithmetic number, because the mean of its divisors is an integer number (36252203256).

Almost surely, 2^144947314139 is an apocalyptic number.

144947314139 is a deficient number, since it is larger than the sum of its proper divisors (61498885).

144947314139 is an equidigital number, since it uses as much as digits as its factorization.

144947314139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61498884.

The product of its digits is 1306368, while the sum is 50.

The spelling of 144947314139 in words is "one hundred forty-four billion, nine hundred forty-seven million, three hundred fourteen thousand, one hundred thirty-nine".