1121086857 has 8 divisors (see below), whose sum is σ = 1630671840. Its totient is φ = 679446560.

The previous prime is 1121086831. The next prime is 1121086859. The reversal of 1121086857 is 7586801211.

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

It is a cyclic number.

It is not a de Polignac number, because 1121086857 - 2⁸ = 1121086601 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1121086859) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16986132 + ... + 16986197.

It is an arithmetic number, because the mean of its divisors is an integer number (203833980).

Almost surely, 2^1121086857 is an apocalyptic number.

It is an amenable number.

1121086857 is a deficient number, since it is larger than the sum of its proper divisors (509584983).

1121086857 is a wasteful number, since it uses less digits than its factorization.

1121086857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33972343.

The product of its (nonzero) digits is 26880, while the sum is 39.

The square root of 1121086857 is about 33482.6351561522. The cubic root of 1121086857 is about 1038.8346343016.

The spelling of 1121086857 in words is "one billion, one hundred twenty-one million, eighty-six thousand, eight hundred fifty-seven".