137428708913 has 4 divisors (see below), whose sum is σ = 142167629940. Its totient is φ = 132689787888.

The previous prime is 137428708903. The next prime is 137428708919. The reversal of 137428708913 is 319807824731.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 319807824731 = 166847 ⋅1916773.

It can be written as a sum of positive squares in 2 ways, for example, as 98452867984 + 38975840929 = 313772^2 + 197423^2 .

It is a cyclic number.

It is not a de Polignac number, because 137428708913 - 2⁸ = 137428708657 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (137428708919) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2369460470 + ... + 2369460527.

It is an arithmetic number, because the mean of its divisors is an integer number (35541907485).

Almost surely, 2^137428708913 is an apocalyptic number.

It is an amenable number.

137428708913 is a deficient number, since it is larger than the sum of its proper divisors (4738921027).

137428708913 is an equidigital number, since it uses as much as digits as its factorization.

137428708913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4738921026.

The product of its (nonzero) digits is 2032128, while the sum is 53.

The spelling of 137428708913 in words is "one hundred thirty-seven billion, four hundred twenty-eight million, seven hundred eight thousand, nine hundred thirteen".