1163215000 has 40 divisors (see below), whose sum is σ = 2725424460. Its totient is φ = 465284000.

The previous prime is 1163214961. The next prime is 1163215003. The reversal of 1163215000 is 5123611.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1163215003) by changing a digit.

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 9 ways as a sum of consecutive naturals, for example, 111322 + ... + 121321.

Almost surely, 2^1163215000 is an apocalyptic number.

1163215000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1163215000 is an abundant number, since it is smaller than the sum of its proper divisors (1562209460).

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

1163215000 is an equidigital number, since it uses as much as digits as its factorization.

1163215000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232669 (or 232650 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 1163215000 is about 34105.9378994333. The cubic root of 1163215000 is about 1051.6873851246.

Adding to 1163215000 its reverse (5123611), we get a palindrome (1168338611).

The spelling of 1163215000 in words is "one billion, one hundred sixty-three million, two hundred fifteen thousand".