137951771 has 2 divisors, whose sum is σ = 137951772. Its totient is φ = 137951770.

The previous prime is 137951747. The next prime is 137951773. The reversal of 137951771 is 177159731.

137951771 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 a cyclic number.

It is not a de Polignac number, because 137951771 - 2¹⁴ = 137935387 is a prime.

It is a super-2 number, since 2×137951771² = 38061382244072882, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 137951773, it forms a pair of twin primes.

It is a Chen prime.

It is equal to p_7802978 and since 137951771 and 7802978 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (137951773) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68975885 + 68975886.

It is an arithmetic number, because the mean of its divisors is an integer number (68975886).

Almost surely, 2^137951771 is an apocalyptic number.

137951771 is a deficient number, since it is larger than the sum of its proper divisors (1).

137951771 is an equidigital number, since it uses as much as digits as its factorization.

137951771 is an evil number, because the sum of its binary digits is even.

The product of its digits is 46305, while the sum is 41.

The square root of 137951771 is about 11745.2871825256. The cubic root of 137951771 is about 516.7047176046.

The spelling of 137951771 in words is "one hundred thirty-seven million, nine hundred fifty-one thousand, seven hundred seventy-one".