137442911 has 2 divisors, whose sum is σ = 137442912. Its totient is φ = 137442910.

The previous prime is 137442887. The next prime is 137442913. The reversal of 137442911 is 119244731.

137442911 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is an emirp because it is prime and its reverse (119244731) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-137442911 is a prime.

It is a Sophie Germain prime.

Together with 137442913, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (137442913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68721455 + 68721456.

It is an arithmetic number, because the mean of its divisors is an integer number (68721456).

Almost surely, 2^137442911 is an apocalyptic number.

137442911 is a deficient number, since it is larger than the sum of its proper divisors (1).

137442911 is an equidigital number, since it uses as much as digits as its factorization.

137442911 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6048, while the sum is 32.

The square root of 137442911 is about 11723.6048636927. The cubic root of 137442911 is about 516.0686153071.

The spelling of 137442911 in words is "one hundred thirty-seven million, four hundred forty-two thousand, nine hundred eleven".