1158139846 has 16 divisors (see below), whose sum is σ = 1747231920. Its totient is φ = 575739360.

The previous prime is 1158139811. The next prime is 1158139877. The reversal of 1158139846 is 6489318511.

It is a junction number, because it is equal to n+sod(n) for n = 1158139796 and 1158139805.

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, 264745 + ... + 269083.

It is an arithmetic number, because the mean of its divisors is an integer number (109201995).

Almost surely, 2^1158139846 is an apocalyptic number.

1158139846 is a deficient number, since it is larger than the sum of its proper divisors (589092074).

1158139846 is a wasteful number, since it uses less digits than its factorization.

1158139846 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5079.

The product of its digits is 207360, while the sum is 46.

The square root of 1158139846 is about 34031.4537744129. The cubic root of 1158139846 is about 1050.1556370957.

The spelling of 1158139846 in words is "one billion, one hundred fifty-eight million, one hundred thirty-nine thousand, eight hundred forty-six".