145304330 has 8 divisors (see below), whose sum is σ = 261547812. Its totient is φ = 58121728.

The previous prime is 145304329. The next prime is 145304339. The reversal of 145304330 is 33403541.

It can be written as a sum of positive squares in 2 ways, for example, as 142301041 + 3003289 = 11929^2 + 1733^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×145304330² = 42226696633497800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 145304296 and 145304305.

It is not an unprimeable number, because it can be changed into a prime (145304339) 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, 7265207 + ... + 7265226.

Almost surely, 2^145304330 is an apocalyptic number.

145304330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

145304330 is a deficient number, since it is larger than the sum of its proper divisors (116243482).

145304330 is a wasteful number, since it uses less digits than its factorization.

145304330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14530440.

The product of its (nonzero) digits is 2160, while the sum is 23.

The square root of 145304330 is about 12054.2245706640. The cubic root of 145304330 is about 525.7260762487.

Adding to 145304330 its reverse (33403541), we get a palindrome (178707871).

The spelling of 145304330 in words is "one hundred forty-five million, three hundred four thousand, three hundred thirty".