845621152 has 12 divisors (see below), whose sum is σ = 1664816706. Its totient is φ = 422810560.

The previous prime is 845621053. The next prime is 845621159. The reversal of 845621152 is 251126548.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 808606096 + 37015056 = 28436^2 + 6084^2 .

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (845621159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13212799 + ... + 13212862.

Almost surely, 2^845621152 is an apocalyptic number.

It is an amenable number.

845621152 is a deficient number, since it is larger than the sum of its proper divisors (819195554).

845621152 is a wasteful number, since it uses less digits than its factorization.

845621152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26425671 (or 26425663 counting only the distinct ones).

The product of its digits is 19200, while the sum is 34.

The square root of 845621152 is about 29079.5658839674. The cubic root of 845621152 is about 945.6387913385.

The spelling of 845621152 in words is "eight hundred forty-five million, six hundred twenty-one thousand, one hundred fifty-two".