137129855 has 4 divisors (see below), whose sum is σ = 164555832. Its totient is φ = 109703880.

The previous prime is 137129851. The next prime is 137129857. The reversal of 137129855 is 558921731.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 558921731 = 6737 ⋅82963.

It is not a de Polignac number, because 137129855 - 2² = 137129851 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137129851) 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, 13712981 + ... + 13712990.

It is an arithmetic number, because the mean of its divisors is an integer number (41138958).

Almost surely, 2^137129855 is an apocalyptic number.

137129855 is a deficient number, since it is larger than the sum of its proper divisors (27425977).

137129855 is an equidigital number, since it uses as much as digits as its factorization.

137129855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27425976.

The product of its digits is 75600, while the sum is 41.

The square root of 137129855 is about 11710.2457275669. The cubic root of 137129855 is about 515.6764980949.

The spelling of 137129855 in words is "one hundred thirty-seven million, one hundred twenty-nine thousand, eight hundred fifty-five".