145316329 has 4 divisors (see below), whose sum is σ = 145388176. Its totient is φ = 145244484.

The previous prime is 145316291. The next prime is 145316363. The reversal of 145316329 is 923613541.

145316329 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 145316329 - 2²¹ = 143219177 is a prime.

It is a super-2 number, since 2×145316329² = 42233670948072482, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 145316294 and 145316303.

It is not an unprimeable number, because it can be changed into a prime (145316399) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32799 + ... + 36964.

It is an arithmetic number, because the mean of its divisors is an integer number (36347044).

Almost surely, 2^145316329 is an apocalyptic number.

It is an amenable number.

145316329 is a deficient number, since it is larger than the sum of its proper divisors (71847).

145316329 is an equidigital number, since it uses as much as digits as its factorization.

145316329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71846.

The product of its digits is 19440, while the sum is 34.

The square root of 145316329 is about 12054.7222697165. The cubic root of 145316329 is about 525.7405470576.

The spelling of 145316329 in words is "one hundred forty-five million, three hundred sixteen thousand, three hundred twenty-nine".