1163220152 has 8 divisors (see below), whose sum is σ = 2181037800. Its totient is φ = 581610072.

The previous prime is 1163220151. The next prime is 1163220169. The reversal of 1163220152 is 2510223611.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×1163220152² = 2706162244037806208, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1163220151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72701252 + ... + 72701267.

It is an arithmetic number, because the mean of its divisors is an integer number (272629725).

Almost surely, 2^1163220152 is an apocalyptic number.

It is an amenable number.

1163220152 is a deficient number, since it is larger than the sum of its proper divisors (1017817648).

1163220152 is a wasteful number, since it uses less digits than its factorization.

1163220152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145402525 (or 145402521 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 1163220152 is about 34106.0134287196. The cubic root of 1163220152 is about 1051.6889377998.

Adding to 1163220152 its reverse (2510223611), we get a palindrome (3673443763).

The spelling of 1163220152 in words is "one billion, one hundred sixty-three million, two hundred twenty thousand, one hundred fifty-two".