1191350142 has 24 divisors (see below), whose sum is σ = 2582499816. Its totient is φ = 396925776.

The previous prime is 1191350129. The next prime is 1191350177. The reversal of 1191350142 is 2410531911.

It is a happy number.

1191350142 is a `hidden beast` number, since 119 + 1 + 3 + 501 + 42 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25473 + ... + 55059.

It is an arithmetic number, because the mean of its divisors is an integer number (107604159).

Almost surely, 2^1191350142 is an apocalyptic number.

1191350142 is an abundant number, since it is smaller than the sum of its proper divisors (1391149674).

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

1191350142 is a wasteful number, since it uses less digits than its factorization.

1191350142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31832 (or 31829 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 27.

The square root of 1191350142 is about 34515.9404043987. The cubic root of 1191350142 is about 1060.0991191280.

The spelling of 1191350142 in words is "one billion, one hundred ninety-one million, three hundred fifty thousand, one hundred forty-two".