137434793 has 4 divisors (see below), whose sum is σ = 137551188. Its totient is φ = 137318400.

The previous prime is 137434789. The next prime is 137434807. The reversal of 137434793 is 397434731.

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: 397434731 = 1453 ⋅273527.

It can be written as a sum of positive squares in 2 ways, for example, as 27541504 + 109893289 = 5248^2 + 10483^2 .

It is a cyclic number.

It is not a de Polignac number, because 137434793 - 2² = 137434789 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 137434793.

It is not an unprimeable number, because it can be changed into a prime (137434753) 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, 56408 + ... + 58793.

It is an arithmetic number, because the mean of its divisors is an integer number (34387797).

Almost surely, 2^137434793 is an apocalyptic number.

It is an amenable number.

137434793 is a deficient number, since it is larger than the sum of its proper divisors (116395).

137434793 is a wasteful number, since it uses less digits than its factorization.

137434793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116394.

The product of its digits is 190512, while the sum is 41.

The square root of 137434793 is about 11723.2586340147. The cubic root of 137434793 is about 516.0584546581.

The spelling of 137434793 in words is "one hundred thirty-seven million, four hundred thirty-four thousand, seven hundred ninety-three".