145522323 has 12 divisors (see below), whose sum is σ = 212732520. Its totient is φ = 95845536.

The previous prime is 145522291. The next prime is 145522367. The reversal of 145522323 is 323225541.

It is a happy number.

It is not a de Polignac number, because 145522323 - 2⁵ = 145522291 is a prime.

It is not an unprimeable number, because it can be changed into a prime (145522373) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 96658 + ... + 98151.

It is an arithmetic number, because the mean of its divisors is an integer number (17727710).

Almost surely, 2^145522323 is an apocalyptic number.

145522323 is a deficient number, since it is larger than the sum of its proper divisors (67210197).

145522323 is a wasteful number, since it uses less digits than its factorization.

145522323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194898 (or 194895 counting only the distinct ones).

The product of its digits is 7200, while the sum is 27.

The square root of 145522323 is about 12063.2633644466. The cubic root of 145522323 is about 525.9888519470.

Adding to 145522323 its reverse (323225541), we get a palindrome (468747864).

The spelling of 145522323 in words is "one hundred forty-five million, five hundred twenty-two thousand, three hundred twenty-three".