2251181362 has 8 divisors (see below), whose sum is σ = 3377267100. Its totient is φ = 1125425664.

The previous prime is 2251181353. The next prime is 2251181369. The reversal of 2251181362 is 2631811522.

It can be written as a sum of positive squares in 2 ways, for example, as 2060161321 + 191020041 = 45389^2 + 13821^2 .

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

It is not an unprimeable number, because it can be changed into a prime (2251181369) 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, 64687 + ... + 93202.

Almost surely, 2^2251181362 is an apocalyptic number.

2251181362 is a deficient number, since it is larger than the sum of its proper divisors (1126085738).

2251181362 is a wasteful number, since it uses less digits than its factorization.

2251181362 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165020.

The product of its digits is 5760, while the sum is 31.

The square root of 2251181362 is about 47446.6159172601. The cubic root of 2251181362 is about 1310.5999935929.

Adding to 2251181362 its reverse (2631811522), we get a palindrome (4882992884).

The spelling of 2251181362 in words is "two billion, two hundred fifty-one million, one hundred eighty-one thousand, three hundred sixty-two".