137085139 has 4 divisors (see below), whose sum is σ = 137161840. Its totient is φ = 137008440.

The previous prime is 137085121. The next prime is 137085163. The reversal of 137085139 is 931580731.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 931580731 = 19213 ⋅48487.

It is a cyclic number.

It is not a de Polignac number, because 137085139 - 2⁹ = 137084627 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 137085098 and 137085107.

It is not an unprimeable number, because it can be changed into a prime (137085439) 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, 35604 + ... + 39265.

It is an arithmetic number, because the mean of its divisors is an integer number (34290460).

Almost surely, 2^137085139 is an apocalyptic number.

137085139 is a deficient number, since it is larger than the sum of its proper divisors (76701).

137085139 is an equidigital number, since it uses as much as digits as its factorization.

137085139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76700.

The product of its (nonzero) digits is 22680, while the sum is 37.

The square root of 137085139 is about 11708.3363036770. The cubic root of 137085139 is about 515.6204405302.

The spelling of 137085139 in words is "one hundred thirty-seven million, eighty-five thousand, one hundred thirty-nine".