129282226431 has 8 divisors (see below), whose sum is σ = 177936827904. Its totient is φ = 83407887960.

The previous prime is 129282226429. The next prime is 129282226483. The reversal of 129282226431 is 134622282921.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 129282226431 - 2¹ = 129282226429 is a prime.

It is a super-2 number, since 2×129282226431² (a number of 23 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129282226831) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 695065641 + ... + 695065826.

It is an arithmetic number, because the mean of its divisors is an integer number (22242103488).

Almost surely, 2^129282226431 is an apocalyptic number.

129282226431 is a deficient number, since it is larger than the sum of its proper divisors (48654601473).

129282226431 is a wasteful number, since it uses less digits than its factorization.

129282226431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1390131501.

The product of its digits is 165888, while the sum is 42.

The spelling of 129282226431 in words is "one hundred twenty-nine billion, two hundred eighty-two million, two hundred twenty-six thousand, four hundred thirty-one".