129226534 has 4 divisors (see below), whose sum is σ = 193839804. Its totient is φ = 64613266.

The previous prime is 129226519. The next prime is 129226549. The reversal of 129226534 is 435622921.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 435622921 = 23 ⋅18940127.

It is an interprime number because it is at equal distance from previous prime (129226519) and next prime (129226549).

It is a self number, because there is not a number n which added to its sum of digits gives 129226534.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32306632 + ... + 32306635.

It is an arithmetic number, because the mean of its divisors is an integer number (48459951).

Almost surely, 2^129226534 is an apocalyptic number.

129226534 is a deficient number, since it is larger than the sum of its proper divisors (64613270).

129226534 is an equidigital number, since it uses as much as digits as its factorization.

129226534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64613269.

The product of its digits is 25920, while the sum is 34.

The square root of 129226534 is about 11367.7849205551. The cubic root of 129226534 is about 505.5730305400.

The spelling of 129226534 in words is "one hundred twenty-nine million, two hundred twenty-six thousand, five hundred thirty-four".