2865229229 has 4 divisors (see below), whose sum is σ = 2865393180. Its totient is φ = 2865065280.

The previous prime is 2865229207. The next prime is 2865229247. The reversal of 2865229229 is 9229225682.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9229225682 = 2 ⋅4614612841.

It can be written as a sum of positive squares in 2 ways, for example, as 1574264329 + 1290964900 = 39677^2 + 35930^2 .

It is a cyclic number.

It is not a de Polignac number, because 2865229229 - 2¹² = 2865225133 is a prime.

It is a super-4 number, since 4×2865229229⁴ (a number of 39 digits) contains 4444 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2867229229) 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, 52142 + ... + 91919.

It is an arithmetic number, because the mean of its divisors is an integer number (716348295).

Almost surely, 2^2865229229 is an apocalyptic number.

It is an amenable number.

2865229229 is a deficient number, since it is larger than the sum of its proper divisors (163951).

2865229229 is a wasteful number, since it uses less digits than its factorization.

2865229229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163950.

The product of its digits is 622080, while the sum is 47.

The square root of 2865229229 is about 53527.8360201494. The cubic root of 2865229229 is about 1420.3208342368.

The spelling of 2865229229 in words is "two billion, eight hundred sixty-five million, two hundred twenty-nine thousand, two hundred twenty-nine".