145163773 has 2 divisors, whose sum is σ = 145163774. Its totient is φ = 145163772.

The previous prime is 145163729. The next prime is 145163779. The reversal of 145163773 is 377361541.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 72624484 + 72539289 = 8522^2 + 8517^2 .

It is an emirp because it is prime and its reverse (377361541) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 145163773 - 2⁹ = 145163261 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145163779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72581886 + 72581887.

It is an arithmetic number, because the mean of its divisors is an integer number (72581887).

Almost surely, 2^145163773 is an apocalyptic number.

It is an amenable number.

145163773 is a deficient number, since it is larger than the sum of its proper divisors (1).

145163773 is an equidigital number, since it uses as much as digits as its factorization.

145163773 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 52920, while the sum is 37.

The square root of 145163773 is about 12048.3929633790. The cubic root of 145163773 is about 525.5565049779.

It can be divided in two parts, 1451637 and 73, that multiplied together give a palindrome (105969501).

The spelling of 145163773 in words is "one hundred forty-five million, one hundred sixty-three thousand, seven hundred seventy-three".