137181145211 has 4 divisors (see below), whose sum is σ = 149652158424. Its totient is φ = 124710132000.

The previous prime is 137181145169. The next prime is 137181145229. The reversal of 137181145211 is 112541181731.

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 137181145211 - 2¹⁰ = 137181144187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (137181145291) 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, 6235506590 + ... + 6235506611.

It is an arithmetic number, because the mean of its divisors is an integer number (37413039606).

Almost surely, 2^137181145211 is an apocalyptic number.

137181145211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

137181145211 is a deficient number, since it is larger than the sum of its proper divisors (12471013213).

137181145211 is a wasteful number, since it uses less digits than its factorization.

137181145211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12471013212.

The product of its digits is 6720, while the sum is 35.

The spelling of 137181145211 in words is "one hundred thirty-seven billion, one hundred eighty-one million, one hundred forty-five thousand, two hundred eleven".