145555568 has 10 divisors (see below), whose sum is σ = 282013944. Its totient is φ = 72777776.

The previous prime is 145555511. The next prime is 145555591. The reversal of 145555568 is 865555541.

It is a plaindrome in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4548596 + ... + 4548627.

Almost surely, 2^145555568 is an apocalyptic number.

It is an amenable number.

145555568 is a deficient number, since it is larger than the sum of its proper divisors (136458376).

145555568 is an equidigital number, since it uses as much as digits as its factorization.

145555568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9097231 (or 9097225 counting only the distinct ones).

The product of its digits is 600000, while the sum is 44.

The square root of 145555568 is about 12064.6412296429. The cubic root of 145555568 is about 526.0289034607.

The spelling of 145555568 in words is "one hundred forty-five million, five hundred fifty-five thousand, five hundred sixty-eight".