145323307 has 2 divisors, whose sum is σ = 145323308. Its totient is φ = 145323306.

The previous prime is 145323301. The next prime is 145323323. The reversal of 145323307 is 703323541.

145323307 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-145323307 is a prime.

It is a super-2 number, since 2×145323307² = 42237727114832498, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (145323301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72661653 + 72661654.

It is an arithmetic number, because the mean of its divisors is an integer number (72661654).

Almost surely, 2^145323307 is an apocalyptic number.

145323307 is a deficient number, since it is larger than the sum of its proper divisors (1).

145323307 is an equidigital number, since it uses as much as digits as its factorization.

145323307 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7560, while the sum is 28.

The square root of 145323307 is about 12055.0116963859. The cubic root of 145323307 is about 525.7489621679.

Adding to 145323307 its reverse (703323541), we get a palindrome (848646848).

The spelling of 145323307 in words is "one hundred forty-five million, three hundred twenty-three thousand, three hundred seven".