137539703123 has 4 divisors (see below), whose sum is σ = 137657159208. Its totient is φ = 137422247040.

The previous prime is 137539703089. The next prime is 137539703153. The reversal of 137539703123 is 321307935731.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 321307935731 = 37 ⋅8683998263.

It is a cyclic number.

It is not a de Polignac number, because 137539703123 - 2¹⁰ = 137539702099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (137539703153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58726286 + ... + 58728627.

It is an arithmetic number, because the mean of its divisors is an integer number (34414289802).

Almost surely, 2^137539703123 is an apocalyptic number.

137539703123 is a deficient number, since it is larger than the sum of its proper divisors (117456085).

137539703123 is a wasteful number, since it uses less digits than its factorization.

137539703123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117456084.

The product of its (nonzero) digits is 357210, while the sum is 44.

The spelling of 137539703123 in words is "one hundred thirty-seven billion, five hundred thirty-nine million, seven hundred three thousand, one hundred twenty-three".