145920329 has 4 divisors (see below), whose sum is σ = 145982976. Its totient is φ = 145857684.

The previous prime is 145920311. The next prime is 145920337. The reversal of 145920329 is 923029541.

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 a de Polignac number, because none of the positive numbers 2^k-145920329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145920529) 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 in 3 ways as a sum of consecutive naturals, for example, 27689 + ... + 32534.

It is an arithmetic number, because the mean of its divisors is an integer number (36495744).

Almost surely, 2^145920329 is an apocalyptic number.

It is an amenable number.

145920329 is a deficient number, since it is larger than the sum of its proper divisors (62647).

145920329 is an equidigital number, since it uses as much as digits as its factorization.

145920329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62646.

The product of its (nonzero) digits is 19440, while the sum is 35.

The square root of 145920329 is about 12079.7487142738. The cubic root of 145920329 is about 526.4679448875.

The spelling of 145920329 in words is "one hundred forty-five million, nine hundred twenty thousand, three hundred twenty-nine".