145423318 has 8 divisors (see below), whose sum is σ = 221832360. Its totient is φ = 71479200.

The previous prime is 145423309. The next prime is 145423339. The reversal of 145423318 is 813324541.

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

It is a super-2 number, since 2×145423318² = 42295882836258248, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 145423318.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 616083 + ... + 616318.

It is an arithmetic number, because the mean of its divisors is an integer number (27729045).

Almost surely, 2^145423318 is an apocalyptic number.

145423318 is a deficient number, since it is larger than the sum of its proper divisors (76409042).

145423318 is a wasteful number, since it uses less digits than its factorization.

145423318 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1232462.

The product of its digits is 11520, while the sum is 31.

The square root of 145423318 is about 12059.1590917443. The cubic root of 145423318 is about 525.8695407206.

Adding to 145423318 its reverse (813324541), we get a palindrome (958747859).

The spelling of 145423318 in words is "one hundred forty-five million, four hundred twenty-three thousand, three hundred eighteen".