1161610252 has 12 divisors (see below), whose sum is σ = 2217619656. Its totient is φ = 528004640.

The previous prime is 1161610249. The next prime is 1161610253. The reversal of 1161610252 is 2520161611.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1161610253) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13200073 + ... + 13200160.

It is an arithmetic number, because the mean of its divisors is an integer number (184801638).

Almost surely, 2^1161610252 is an apocalyptic number.

It is an amenable number.

1161610252 is a deficient number, since it is larger than the sum of its proper divisors (1056009404).

1161610252 is a wasteful number, since it uses less digits than its factorization.

1161610252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26400248 (or 26400246 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 25.

The square root of 1161610252 is about 34082.4038471467. The cubic root of 1161610252 is about 1051.2035336366.

Adding to 1161610252 its reverse (2520161611), we get a palindrome (3681771863).

The spelling of 1161610252 in words is "one billion, one hundred sixty-one million, six hundred ten thousand, two hundred fifty-two".