1118390057 has 8 divisors (see below), whose sum is σ = 1132511520. Its totient is φ = 1104284160.

The previous prime is 1118390029. The next prime is 1118390059. The reversal of 1118390057 is 7500938111.

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 1118390057 - 2¹⁰ = 1118389033 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1118389999 and 1118390026.

It is not an unprimeable number, because it can be changed into a prime (1118390059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 220682 + ... + 225692.

It is an arithmetic number, because the mean of its divisors is an integer number (141563940).

Almost surely, 2^1118390057 is an apocalyptic number.

It is an amenable number.

1118390057 is a deficient number, since it is larger than the sum of its proper divisors (14121463).

1118390057 is an equidigital number, since it uses as much as digits as its factorization.

1118390057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7783.

The product of its (nonzero) digits is 7560, while the sum is 35.

The square root of 1118390057 is about 33442.3392871970. The cubic root of 1118390057 is about 1038.0009853558. Note that the first 3 decimals are identical.

The spelling of 1118390057 in words is "one billion, one hundred eighteen million, three hundred ninety thousand, fifty-seven".