145768816 has 10 divisors (see below), whose sum is σ = 282427112. Its totient is φ = 72884400.

The previous prime is 145768813. The next prime is 145768849. The reversal of 145768816 is 618867541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145768813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4555260 + ... + 4555291.

Almost surely, 2^145768816 is an apocalyptic number.

145768816 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

145768816 is a deficient number, since it is larger than the sum of its proper divisors (136658296).

145768816 is an equidigital number, since it uses as much as digits as its factorization.

145768816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9110559 (or 9110553 counting only the distinct ones).

The product of its digits is 322560, while the sum is 46.

The square root of 145768816 is about 12073.4757215973. The cubic root of 145768816 is about 526.2856665118.

The spelling of 145768816 in words is "one hundred forty-five million, seven hundred sixty-eight thousand, eight hundred sixteen".