1161533502 has 12 divisors (see below), whose sum is σ = 2516655960. Its totient is φ = 387177828.

The previous prime is 1161533497. The next prime is 1161533533. The reversal of 1161533502 is 2053351611.

1161533502 is a `hidden beast` number, since 1 + 1 + 6 + 153 + 3 + 502 = 666.

1161533502 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 32264802 + ... + 32264837.

It is an arithmetic number, because the mean of its divisors is an integer number (209721330).

Almost surely, 2^1161533502 is an apocalyptic number.

1161533502 is an abundant number, since it is smaller than the sum of its proper divisors (1355122458).

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

1161533502 is a wasteful number, since it uses less digits than its factorization.

1161533502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64529647 (or 64529644 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

The square root of 1161533502 is about 34081.2778809715. The cubic root of 1161533502 is about 1051.1803813937.

The spelling of 1161533502 in words is "one billion, one hundred sixty-one million, five hundred thirty-three thousand, five hundred two".