149182381171 has 4 divisors (see below), whose sum is σ = 149183580600. Its totient is φ = 149181181744.

The previous prime is 149182381163. The next prime is 149182381237. The reversal of 149182381171 is 171183281941.

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

It is a cyclic number.

It is not a de Polignac number, because 149182381171 - 2³ = 149182381163 is a prime.

It is a super-3 number, since 3×149182381171³ (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (149182381141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 388306 + ... + 670183.

It is an arithmetic number, because the mean of its divisors is an integer number (37295895150).

Almost surely, 2^149182381171 is an apocalyptic number.

149182381171 is a deficient number, since it is larger than the sum of its proper divisors (1199429).

149182381171 is a wasteful number, since it uses less digits than its factorization.

149182381171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1199428.

The product of its digits is 96768, while the sum is 46.

The spelling of 149182381171 in words is "one hundred forty-nine billion, one hundred eighty-two million, three hundred eighty-one thousand, one hundred seventy-one".