145744331879 has 2 divisors, whose sum is σ = 145744331880. Its totient is φ = 145744331878.

The previous prime is 145744331869. The next prime is 145744331897. The reversal of 145744331879 is 978133447541.

Together with next prime (145744331897) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is an emirp because it is prime and its reverse (978133447541) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 145744331879 - 2¹² = 145744327783 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145744331849) 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 as a sum of consecutive naturals, namely, 72872165939 + 72872165940.

It is an arithmetic number, because the mean of its divisors is an integer number (72872165940).

Almost surely, 2^145744331879 is an apocalyptic number.

145744331879 is a deficient number, since it is larger than the sum of its proper divisors (1).

145744331879 is an equidigital number, since it uses as much as digits as its factorization.

145744331879 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10160640, while the sum is 56.

The spelling of 145744331879 in words is "one hundred forty-five billion, seven hundred forty-four million, three hundred thirty-one thousand, eight hundred seventy-nine".