181373006 has 4 divisors (see below), whose sum is σ = 272059512. Its totient is φ = 90686502.

The previous prime is 181372973. The next prime is 181373111. The reversal of 181373006 is 600373181.

181373006 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 181373006.

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, 45343250 + ... + 45343253.

It is an arithmetic number, because the mean of its divisors is an integer number (68014878).

Almost surely, 2^181373006 is an apocalyptic number.

181373006 is a deficient number, since it is larger than the sum of its proper divisors (90686506).

181373006 is an equidigital number, since it uses as much as digits as its factorization.

181373006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90686505.

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 181373006 is about 13467.4795711744. The cubic root of 181373006 is about 566.0535915493.

The spelling of 181373006 in words is "one hundred eighty-one million, three hundred seventy-three thousand, six".