145255723 has 2 divisors, whose sum is σ = 145255724. Its totient is φ = 145255722.

The previous prime is 145255717. The next prime is 145255771. The reversal of 145255723 is 327552541.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 145255723 - 2²¹ = 143158571 is a prime.

It is not a weakly prime, because it can be changed into another prime (145255793) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72627861 + 72627862.

It is an arithmetic number, because the mean of its divisors is an integer number (72627862).

Almost surely, 2^145255723 is an apocalyptic number.

145255723 is a deficient number, since it is larger than the sum of its proper divisors (1).

145255723 is an equidigital number, since it uses as much as digits as its factorization.

145255723 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 42000, while the sum is 34.

The square root of 145255723 is about 12052.2082209029. The cubic root of 145255723 is about 525.6674479951.

It can be divided in two parts, 1452 and 55723, that added together give a palindrome (57175).

The spelling of 145255723 in words is "one hundred forty-five million, two hundred fifty-five thousand, seven hundred twenty-three".