1173216144 has 40 divisors (see below), whose sum is σ = 3060246592. Its totient is φ = 387273600.

The previous prime is 1173216127. The next prime is 1173216151. The reversal of 1173216144 is 4416123711.

It is a super-2 number, since 2×1173216144² = 2752872241084457472, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 113707 + ... + 123594.

Almost surely, 2^1173216144 is an apocalyptic number.

It is an amenable number.

1173216144 is an abundant number, since it is smaller than the sum of its proper divisors (1887030448).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1173216144 is a wasteful number, since it uses less digits than its factorization.

1173216144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237415 (or 237409 counting only the distinct ones).

The product of its digits is 4032, while the sum is 30.

The square root of 1173216144 is about 34252.2429046625. The cubic root of 1173216144 is about 1054.6928701747.

Adding to 1173216144 its reverse (4416123711), we get a palindrome (5589339855).

The spelling of 1173216144 in words is "one billion, one hundred seventy-three million, two hundred sixteen thousand, one hundred forty-four".