269028129 has 4 divisors (see below), whose sum is σ = 358704176. Its totient is φ = 179352084.

The previous prime is 269028127. The next prime is 269028139. The reversal of 269028129 is 921820962.

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 not a de Polignac number, because 269028129 - 2¹ = 269028127 is a prime.

It is a super-2 number, since 2×269028129² = 144752268386481282, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (269028127) 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, 44838019 + ... + 44838024.

It is an arithmetic number, because the mean of its divisors is an integer number (89676044).

Almost surely, 2^269028129 is an apocalyptic number.

It is an amenable number.

269028129 is a deficient number, since it is larger than the sum of its proper divisors (89676047).

269028129 is an equidigital number, since it uses as much as digits as its factorization.

269028129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89676046.

The product of its (nonzero) digits is 31104, while the sum is 39.

The square root of 269028129 is about 16402.0769721398. The cubic root of 269028129 is about 645.5539811213.

The spelling of 269028129 in words is "two hundred sixty-nine million, twenty-eight thousand, one hundred twenty-nine".