129282853537 has 4 divisors (see below), whose sum is σ = 130426949700. Its totient is φ = 128138757376.

The previous prime is 129282853451. The next prime is 129282853541. The reversal of 129282853537 is 735358282921.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 735358282921 = 1697 ⋅433328393.

It can be written as a sum of positive squares in 2 ways, for example, as 23941063441 + 105341790096 = 154729^2 + 324564^2 .

It is a cyclic number.

It is not a de Polignac number, because 129282853537 - 2¹⁵ = 129282820769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (129292853537) 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, 572047912 + ... + 572048137.

It is an arithmetic number, because the mean of its divisors is an integer number (32606737425).

Almost surely, 2^129282853537 is an apocalyptic number.

It is an amenable number.

129282853537 is a deficient number, since it is larger than the sum of its proper divisors (1144096163).

129282853537 is a wasteful number, since it uses less digits than its factorization.

129282853537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1144096162.

The product of its digits is 7257600, while the sum is 55.

The spelling of 129282853537 in words is "one hundred twenty-nine billion, two hundred eighty-two million, eight hundred fifty-three thousand, five hundred thirty-seven".