34685129 has 4 divisors (see below), whose sum is σ = 34814340. Its totient is φ = 34555920.

The previous prime is 34685111. The next prime is 34685137. The reversal of 34685129 is 92158643.

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: 92158643 = 1889 ⋅48787.

It can be written as a sum of positive squares in 2 ways, for example, as 16605625 + 18079504 = 4075^2 + 4252^2 .

It is a cyclic number.

It is not a de Polignac number, because 34685129 - 2²⁴ = 17907913 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 34685092 and 34685101.

It is not an unprimeable number, because it can be changed into a prime (34685929) 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, 64202 + ... + 64739.

It is an arithmetic number, because the mean of its divisors is an integer number (8703585).

Almost surely, 2^34685129 is an apocalyptic number.

It is an amenable number.

34685129 is a deficient number, since it is larger than the sum of its proper divisors (129211).

34685129 is a wasteful number, since it uses less digits than its factorization.

34685129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129210.

The product of its digits is 51840, while the sum is 38.

The square root of 34685129 is about 5889.4082045652. The cubic root of 34685129 is about 326.1227566603.

The spelling of 34685129 in words is "thirty-four million, six hundred eighty-five thousand, one hundred twenty-nine".