145293323 has 16 divisors (see below), whose sum is σ = 182392320. Its totient is φ = 112850496.

The previous prime is 145293307. The next prime is 145293329. The reversal of 145293323 is 323392541.

It is a cyclic number.

It is not a de Polignac number, because 145293323 - 2⁴ = 145293307 is a prime.

It is a super-2 number, since 2×145293323² = 42220299416764658, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 145293323.

It is not an unprimeable number, because it can be changed into a prime (145293329) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20690 + ... + 26807.

It is an arithmetic number, because the mean of its divisors is an integer number (11399520).

Almost surely, 2^145293323 is an apocalyptic number.

145293323 is a deficient number, since it is larger than the sum of its proper divisors (37098997).

145293323 is a wasteful number, since it uses less digits than its factorization.

145293323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47546.

The product of its digits is 19440, while the sum is 32.

The square root of 145293323 is about 12053.7680000903. The cubic root of 145293323 is about 525.7128010925.

The spelling of 145293323 in words is "one hundred forty-five million, two hundred ninety-three thousand, three hundred twenty-three".