137329387 has 4 divisors (see below), whose sum is σ = 147893200. Its totient is φ = 126765576.

The previous prime is 137329363. The next prime is 137329391. The reversal of 137329387 is 783923731.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 783923731 = 41 ⋅19120091.

It is a cyclic number.

It is not a de Polignac number, because 137329387 - 2⁷ = 137329259 is a prime.

It is not an unprimeable number, because it can be changed into a prime (137329327) 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, 5281887 + ... + 5281912.

It is an arithmetic number, because the mean of its divisors is an integer number (36973300).

Almost surely, 2^137329387 is an apocalyptic number.

137329387 is a deficient number, since it is larger than the sum of its proper divisors (10563813).

137329387 is a wasteful number, since it uses less digits than its factorization.

137329387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10563812.

The product of its digits is 190512, while the sum is 43.

The square root of 137329387 is about 11718.7621786603. The cubic root of 137329387 is about 515.9264900891.

The spelling of 137329387 in words is "one hundred thirty-seven million, three hundred twenty-nine thousand, three hundred eighty-seven".