1165751442 has 24 divisors (see below), whose sum is σ = 2587401180. Its totient is φ = 379105920.

The previous prime is 1165751423. The next prime is 1165751449. The reversal of 1165751442 is 2441575611.

1165751442 is a `hidden beast` number, since 1 + 165 + 7 + 51 + 442 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1164925161 + 826281 = 34131^2 + 909^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1165751397 and 1165751406.

It is not an unprimeable number, because it can be changed into a prime (1165751449) 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 11 ways as a sum of consecutive naturals, for example, 789067 + ... + 790542.

Almost surely, 2^1165751442 is an apocalyptic number.

1165751442 is an abundant number, since it is smaller than the sum of its proper divisors (1421649738).

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

1165751442 is a wasteful number, since it uses less digits than its factorization.

1165751442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1579658 (or 1579655 counting only the distinct ones).

The product of its digits is 33600, while the sum is 36.

The square root of 1165751442 is about 34143.1024073677. The cubic root of 1165751442 is about 1052.4512472081.

The spelling of 1165751442 in words is "one billion, one hundred sixty-five million, seven hundred fifty-one thousand, four hundred forty-two".