137648135 has 4 divisors (see below), whose sum is σ = 165177768. Its totient is φ = 110118504.

The previous prime is 137648059. The next prime is 137648219. The reversal of 137648135 is 531846731.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 531846731 = 13 ⋅40911287.

It is a cyclic number.

It is not a de Polignac number, because 137648135 - 2⁸ = 137647879 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13764809 + ... + 13764818.

It is an arithmetic number, because the mean of its divisors is an integer number (41294442).

Almost surely, 2^137648135 is an apocalyptic number.

137648135 is a deficient number, since it is larger than the sum of its proper divisors (27529633).

137648135 is an equidigital number, since it uses as much as digits as its factorization.

137648135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27529632.

The product of its digits is 60480, while the sum is 38.

The square root of 137648135 is about 11732.3541968353. The cubic root of 137648135 is about 516.3253449197.

The spelling of 137648135 in words is "one hundred thirty-seven million, six hundred forty-eight thousand, one hundred thirty-five".