137755771 has 4 divisors (see below), whose sum is σ = 142506000. Its totient is φ = 133005544.

The previous prime is 137755753. The next prime is 137755799. The reversal of 137755771 is 177557731.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 177557731 = 13 ⋅13658287.

It is a cyclic number.

It is not a de Polignac number, because 137755771 - 2⁹ = 137755259 is a prime.

It is not an unprimeable number, because it can be changed into a prime (137755171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2375071 + ... + 2375128.

It is an arithmetic number, because the mean of its divisors is an integer number (35626500).

Almost surely, 2^137755771 is an apocalyptic number.

137755771 is a deficient number, since it is larger than the sum of its proper divisors (4750229).

137755771 is an equidigital number, since it uses as much as digits as its factorization.

137755771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4750228.

The product of its digits is 180075, while the sum is 43.

The square root of 137755771 is about 11736.9404445963. The cubic root of 137755771 is about 516.4598926082.

The spelling of 137755771 in words is "one hundred thirty-seven million, seven hundred fifty-five thousand, seven hundred seventy-one".