340658137 has 4 divisors (see below), whose sum is σ = 341862160. Its totient is φ = 339454116.

The previous prime is 340658119. The next prime is 340658141. The reversal of 340658137 is 731856043.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 731856043 = 12107 ⋅60449.

It is a cyclic number.

It is not a de Polignac number, because 340658137 - 2¹¹ = 340656089 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 340658096 and 340658105.

It is not an unprimeable number, because it can be changed into a prime (340658107) 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, 601587 + ... + 602152.

It is an arithmetic number, because the mean of its divisors is an integer number (85465540).

Almost surely, 2^340658137 is an apocalyptic number.

It is an amenable number.

340658137 is a deficient number, since it is larger than the sum of its proper divisors (1204023).

340658137 is a wasteful number, since it uses less digits than its factorization.

340658137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1204022.

The product of its (nonzero) digits is 60480, while the sum is 37.

The square root of 340658137 is about 18456.9265317929. The cubic root of 340658137 is about 698.4032564163.

The spelling of 340658137 in words is "three hundred forty million, six hundred fifty-eight thousand, one hundred thirty-seven".