145230322 has 4 divisors (see below), whose sum is σ = 217845486. Its totient is φ = 72615160.

The previous prime is 145230317. The next prime is 145230331. The reversal of 145230322 is 223032541.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 145226601 + 3721 = 12051^2 + 61^2 .

It is a junction number, because it is equal to n+sod(n) for n = 145230293 and 145230302.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 36307579 + ... + 36307582.

Almost surely, 2^145230322 is an apocalyptic number.

145230322 is a deficient number, since it is larger than the sum of its proper divisors (72615164).

145230322 is an equidigital number, since it uses as much as digits as its factorization.

145230322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72615163.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 145230322 is about 12051.1543845393. The cubic root of 145230322 is about 525.6368048944.

Adding to 145230322 its reverse (223032541), we get a palindrome (368262863).

The spelling of 145230322 in words is "one hundred forty-five million, two hundred thirty thousand, three hundred twenty-two".