1191606242 has 16 divisors (see below), whose sum is σ = 1883356800. Its totient is φ = 563883120.

The previous prime is 1191606233. The next prime is 1191606263. The reversal of 1191606242 is 2426061911.

It is a junction number, because it is equal to n+sod(n) for n = 1191606199 and 1191606208.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24392 + ... + 54572.

It is an arithmetic number, because the mean of its divisors is an integer number (117709800).

Almost surely, 2^1191606242 is an apocalyptic number.

1191606242 is a deficient number, since it is larger than the sum of its proper divisors (691750558).

1191606242 is a wasteful number, since it uses less digits than its factorization.

1191606242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31241.

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 1191606242 is about 34519.6500851327. The cubic root of 1191606242 is about 1060.1750755082.

The spelling of 1191606242 in words is "one billion, one hundred ninety-one million, six hundred six thousand, two hundred forty-two".