1161752388 has 12 divisors (see below), whose sum is σ = 2710755600. Its totient is φ = 387250792.

The previous prime is 1161752387. The next prime is 1161752437. The reversal of 1161752388 is 8832571611.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×1161752388² = 2699337222047405088, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1161752387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48406338 + ... + 48406361.

It is an arithmetic number, because the mean of its divisors is an integer number (225896300).

Almost surely, 2^1161752388 is an apocalyptic number.

It is an amenable number.

1161752388 is an abundant number, since it is smaller than the sum of its proper divisors (1549003212).

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

1161752388 is a wasteful number, since it uses less digits than its factorization.

1161752388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96812706 (or 96812704 counting only the distinct ones).

The product of its digits is 80640, while the sum is 42.

The square root of 1161752388 is about 34084.4889649236. The cubic root of 1161752388 is about 1051.2464073892.

The spelling of 1161752388 in words is "one billion, one hundred sixty-one million, seven hundred fifty-two thousand, three hundred eighty-eight".