1158406685 has 8 divisors (see below), whose sum is σ = 1391302656. Its totient is φ = 925915600.

The previous prime is 1158406633. The next prime is 1158406703. The reversal of 1158406685 is 5866048511.

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

It is not a de Polignac number, because 1158406685 - 2¹² = 1158402589 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

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, 94889 + ... + 106398.

It is an arithmetic number, because the mean of its divisors is an integer number (173912832).

Almost surely, 2^1158406685 is an apocalyptic number.

It is an amenable number.

1158406685 is a deficient number, since it is larger than the sum of its proper divisors (232895971).

1158406685 is a wasteful number, since it uses less digits than its factorization.

1158406685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202443.

The product of its (nonzero) digits is 230400, while the sum is 44.

The square root of 1158406685 is about 34035.3740246820. The cubic root of 1158406685 is about 1050.2362839371.

The spelling of 1158406685 in words is "one billion, one hundred fifty-eight million, four hundred six thousand, six hundred eighty-five".