1161871342 has 4 divisors (see below), whose sum is σ = 1742807016. Its totient is φ = 580935670.

The previous prime is 1161871339. The next prime is 1161871367. The reversal of 1161871342 is 2431781611.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2431781611 = 7 ⋅347397373.

It is a junction number, because it is equal to n+sod(n) for n = 1161871298 and 1161871307.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 290467834 + ... + 290467837.

It is an arithmetic number, because the mean of its divisors is an integer number (435701754).

Almost surely, 2^1161871342 is an apocalyptic number.

1161871342 is a deficient number, since it is larger than the sum of its proper divisors (580935674).

1161871342 is an equidigital number, since it uses as much as digits as its factorization.

1161871342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 580935673.

The product of its digits is 8064, while the sum is 34.

The square root of 1161871342 is about 34086.2339075469. The cubic root of 1161871342 is about 1051.2822858600.

The spelling of 1161871342 in words is "one billion, one hundred sixty-one million, eight hundred seventy-one thousand, three hundred forty-two".