138034829 has 4 divisors (see below), whose sum is σ = 145299840. Its totient is φ = 130769820.

The previous prime is 138034801. The next prime is 138034837. The reversal of 138034829 is 928430831.

138034829 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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: 928430831 = 79 ⋅11752289.

It is a cyclic number.

It is not a de Polignac number, because 138034829 - 2²⁰ = 136986253 is a prime.

It is a super-2 number, since 2×138034829² = 38107228034118482, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 138034792 and 138034801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138034129) 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, 3632477 + ... + 3632514.

It is an arithmetic number, because the mean of its divisors is an integer number (36324960).

Almost surely, 2^138034829 is an apocalyptic number.

138034829 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

138034829 is a deficient number, since it is larger than the sum of its proper divisors (7265011).

138034829 is an equidigital number, since it uses as much as digits as its factorization.

138034829 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7265010.

The product of its (nonzero) digits is 41472, while the sum is 38.

The square root of 138034829 is about 11748.8224516332. The cubic root of 138034829 is about 516.8083959891.

The spelling of 138034829 in words is "one hundred thirty-eight million, thirty-four thousand, eight hundred twenty-nine".