181103038445 has 8 divisors (see below), whose sum is σ = 248369881344. Its totient is φ = 124184940624.

The previous prime is 181103038399. The next prime is 181103038451. The reversal of 181103038445 is 544830301181.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 181103038445 - 2⁸ = 181103038189 is a prime.

It is a super-2 number, since 2×181103038445² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 181103038399 and 181103038408.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2587186229 + ... + 2587186298.

It is an arithmetic number, because the mean of its divisors is an integer number (31046235168).

Almost surely, 2^181103038445 is an apocalyptic number.

It is an amenable number.

181103038445 is a deficient number, since it is larger than the sum of its proper divisors (67266842899).

181103038445 is an equidigital number, since it uses as much as digits as its factorization.

181103038445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5174372539.

The product of its (nonzero) digits is 46080, while the sum is 38.

The spelling of 181103038445 in words is "one hundred eighty-one billion, one hundred three million, thirty-eight thousand, four hundred forty-five".