145821008 has 40 divisors (see below), whose sum is σ = 286960800. Its totient is φ = 71777664.

The previous prime is 145821001. The next prime is 145821023. The reversal of 145821008 is 800128541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145821001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 384563 + ... + 384941.

It is an arithmetic number, because the mean of its divisors is an integer number (7174020).

Almost surely, 2^145821008 is an apocalyptic number.

It is an amenable number.

145821008 is a deficient number, since it is larger than the sum of its proper divisors (141139792).

145821008 is a wasteful number, since it uses less digits than its factorization.

145821008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 699 (or 693 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 29.

The square root of 145821008 is about 12075.6369604257. The cubic root of 145821008 is about 526.3484705798.

Adding to 145821008 its reverse (800128541), we get a palindrome (945949549).

The spelling of 145821008 in words is "one hundred forty-five million, eight hundred twenty-one thousand, eight".