2238171154 has 4 divisors (see below), whose sum is σ = 3357256734. Its totient is φ = 1119085576.

The previous prime is 2238171149. The next prime is 2238171157. The reversal of 2238171154 is 4511718322.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1630302129 + 607869025 = 40377^2 + 24655^2 .

It is a super-2 number, since 2×2238171154² = 10018820229195383432, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2238171157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 559542787 + ... + 559542790.

Almost surely, 2^2238171154 is an apocalyptic number.

2238171154 is a deficient number, since it is larger than the sum of its proper divisors (1119085580).

2238171154 is a wasteful number, since it uses less digits than its factorization.

2238171154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1119085579.

The product of its digits is 13440, while the sum is 34.

The square root of 2238171154 is about 47309.3136073649. The cubic root of 2238171154 is about 1308.0703392331.

Adding to 2238171154 its reverse (4511718322), we get a palindrome (6749889476).

The spelling of 2238171154 in words is "two billion, two hundred thirty-eight million, one hundred seventy-one thousand, one hundred fifty-four".