1147222178 has 8 divisors (see below), whose sum is σ = 1727974380. Its totient is φ = 571230720.

The previous prime is 1147222163. The next prime is 1147222187. The reversal of 1147222178 is 8712227411.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 988033489 + 159188689 = 31433^2 + 12617^2 .

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

It is a super-2 number, since 2×1147222178² = 2632237451390127368, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1189583 + ... + 1190546.

Almost surely, 2^1147222178 is an apocalyptic number.

1147222178 is a deficient number, since it is larger than the sum of its proper divisors (580752202).

1147222178 is a wasteful number, since it uses less digits than its factorization.

1147222178 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2380372.

The product of its digits is 12544, while the sum is 35.

The square root of 1147222178 is about 33870.6684020260. The cubic root of 1147222178 is about 1046.8453092558.

Adding to 1147222178 its reverse (8712227411), we get a palindrome (9859449589).

The spelling of 1147222178 in words is "one billion, one hundred forty-seven million, two hundred twenty-two thousand, one hundred seventy-eight".