145023077 has 2 divisors, whose sum is σ = 145023078. Its totient is φ = 145023076.

The previous prime is 145023071. The next prime is 145023079. The reversal of 145023077 is 770320541.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 126135361 + 18887716 = 11231^2 + 4346^2 .

It is a cyclic number.

It is not a de Polignac number, because 145023077 - 2⁶ = 145023013 is a prime.

Together with 145023079, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145023071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72511538 + 72511539.

It is an arithmetic number, because the mean of its divisors is an integer number (72511539).

Almost surely, 2^145023077 is an apocalyptic number.

It is an amenable number.

145023077 is a deficient number, since it is larger than the sum of its proper divisors (1).

145023077 is an equidigital number, since it uses as much as digits as its factorization.

145023077 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5880, while the sum is 29.

The square root of 145023077 is about 12042.5527609390. The cubic root of 145023077 is about 525.3866563565.

The spelling of 145023077 in words is "one hundred forty-five million, twenty-three thousand, seventy-seven".