1171573142 has 8 divisors (see below), whose sum is σ = 1814048832. Its totient is φ = 566890200.

The previous prime is 1171573129. The next prime is 1171573147. The reversal of 1171573142 is 2413751711.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 1171573099 and 1171573108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1171573147) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9448109 + ... + 9448232.

It is an arithmetic number, because the mean of its divisors is an integer number (226756104).

Almost surely, 2^1171573142 is an apocalyptic number.

1171573142 is a deficient number, since it is larger than the sum of its proper divisors (642475690).

1171573142 is a wasteful number, since it uses less digits than its factorization.

1171573142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18896374.

The product of its digits is 5880, while the sum is 32.

The square root of 1171573142 is about 34228.2506418309. The cubic root of 1171573142 is about 1054.2003005122.

The spelling of 1171573142 in words is "one billion, one hundred seventy-one million, five hundred seventy-three thousand, one hundred forty-two".