134985829 has 4 divisors (see below), whose sum is σ = 147257280. Its totient is φ = 122714380.

The previous prime is 134985821. The next prime is 134985847. The reversal of 134985829 is 928589431.

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.

It is a cyclic number.

It is not a de Polignac number, because 134985829 - 2³ = 134985821 is a prime.

It is a super-3 number, since 3×134985829³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134985821) 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, 6135709 + ... + 6135730.

It is an arithmetic number, because the mean of its divisors is an integer number (36814320).

Almost surely, 2^134985829 is an apocalyptic number.

It is an amenable number.

134985829 is a deficient number, since it is larger than the sum of its proper divisors (12271451).

134985829 is a wasteful number, since it uses less digits than its factorization.

134985829 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12271450.

The product of its digits is 622080, while the sum is 49.

The square root of 134985829 is about 11618.3401998736. The cubic root of 134985829 is about 512.9748336941.

It can be divided in two parts, 1349 and 85829, that added together give a palindrome (87178).

The spelling of 134985829 in words is "one hundred thirty-four million, nine hundred eighty-five thousand, eight hundred twenty-nine".