1172071216 has 10 divisors (see below), whose sum is σ = 2270888012. Its totient is φ = 586035600.

The previous prime is 1172071177. The next prime is 1172071217. The reversal of 1172071216 is 6121702711.

It is not an unprimeable number, because it can be changed into a prime (1172071217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36627210 + ... + 36627241.

Almost surely, 2^1172071216 is an apocalyptic number.

1172071216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1172071216 is a deficient number, since it is larger than the sum of its proper divisors (1098816796).

1172071216 is an equidigital number, since it uses as much as digits as its factorization.

1172071216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73254459 (or 73254453 counting only the distinct ones).

The product of its (nonzero) digits is 1176, while the sum is 28.

The square root of 1172071216 is about 34235.5256422331. The cubic root of 1172071216 is about 1054.3496710043.

Adding to 1172071216 its reverse (6121702711), we get a palindrome (7293773927).

The spelling of 1172071216 in words is "one billion, one hundred seventy-two million, seventy-one thousand, two hundred sixteen".