145332329 has 2 divisors, whose sum is σ = 145332330. Its totient is φ = 145332328.

The previous prime is 145332277. The next prime is 145332347. The reversal of 145332329 is 923233541.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 144480400 + 851929 = 12020^2 + 923^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-145332329 is a prime.

It is a super-2 number, since 2×145332329² = 42242971705128482, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 145332295 and 145332304.

It is not a weakly prime, because it can be changed into another prime (145332359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72666164 + 72666165.

It is an arithmetic number, because the mean of its divisors is an integer number (72666165).

Almost surely, 2^145332329 is an apocalyptic number.

It is an amenable number.

145332329 is a deficient number, since it is larger than the sum of its proper divisors (1).

145332329 is an equidigital number, since it uses as much as digits as its factorization.

145332329 is an evil number, because the sum of its binary digits is even.

The product of its digits is 19440, while the sum is 32.

The square root of 145332329 is about 12055.3858917913. The cubic root of 145332329 is about 525.7598418381.

The spelling of 145332329 in words is "one hundred forty-five million, three hundred thirty-two thousand, three hundred twenty-nine".