8149572 has 30 divisors (see below), whose sum is σ = 21305438. Its totient is φ = 2716416.

The previous prime is 8149571. The next prime is 8149577. The reversal of 8149572 is 2759418.

8149572 is a `hidden beast` number, since 81 + 4 + 9 + 572 = 666.

It can be written as a sum of positive squares in only one way, i.e., 7096896 + 1052676 = 2664^2 + 1026^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (8149571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 12253 + ... + 12900.

Almost surely, 2^8149572 is an apocalyptic number.

It is an amenable number.

8149572 is an abundant number, since it is smaller than the sum of its proper divisors (13155866).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8149572 is a wasteful number, since it uses less digits than its factorization.

8149572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25169 (or 25158 counting only the distinct ones).

The product of its digits is 20160, while the sum is 36.

The square root of 8149572 is about 2854.7455228093. The cubic root of 8149572 is about 201.2387450465.

The spelling of 8149572 in words is "eight million, one hundred forty-nine thousand, five hundred seventy-two".