123581852 has 54 divisors (see below), whose sum is σ = 242142264. Its totient is φ = 55075680.

The previous prime is 123581839. The next prime is 123581869. The reversal of 123581852 is 258185321.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 2025902 + ... + 2025962.

It is an arithmetic number, because the mean of its divisors is an integer number (4484116).

Almost surely, 2^123581852 is an apocalyptic number.

It is an amenable number.

123581852 is a deficient number, since it is larger than the sum of its proper divisors (118560412).

123581852 is a wasteful number, since it uses less digits than its factorization.

123581852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187 (or 105 counting only the distinct ones).

The product of its digits is 19200, while the sum is 35.

The square root of 123581852 is about 11116.7374710389. The cubic root of 123581852 is about 498.1019398527.

The spelling of 123581852 in words is "one hundred twenty-three million, five hundred eighty-one thousand, eight hundred fifty-two".