2249761069 has 6 divisors (see below), whose sum is σ = 2287018986. Its totient is φ = 2212515360.

The previous prime is 2249761051. The next prime is 2249761081. The reversal of 2249761069 is 9601679422.

It can be written as a sum of positive squares in 3 ways, for example, as 648720900 + 1601040169 = 25470^2 + 40013^2 .

It is not a de Polignac number, because 2249761069 - 2¹¹ = 2249759021 is a prime.

It is a super-2 number, since 2×2249761069² = 10122849735176045522, which contains 22 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 (2249761469) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 367417 + ... + 373489.

It is an arithmetic number, because the mean of its divisors is an integer number (381169831).

Almost surely, 2^2249761069 is an apocalyptic number.

It is an amenable number.

2249761069 is a deficient number, since it is larger than the sum of its proper divisors (37257917).

2249761069 is an frugal number, since it uses more digits than its factorization.

2249761069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12207 (or 6134 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 46.

The square root of 2249761069 is about 47431.6462817811. The cubic root of 2249761069 is about 1310.3243120283.

The spelling of 2249761069 in words is "two billion, two hundred forty-nine million, seven hundred sixty-one thousand, sixty-nine".