1158598958 has 12 divisors (see below), whose sum is σ = 1910252400. Its totient is φ = 526635780.

The previous prime is 1158598957. The next prime is 1158598979. The reversal of 1158598958 is 8598958511.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1158598897 and 1158598906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1158598957) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2393558 + ... + 2394041.

It is an arithmetic number, because the mean of its divisors is an integer number (159187700).

Almost surely, 2^1158598958 is an apocalyptic number.

1158598958 is a deficient number, since it is larger than the sum of its proper divisors (751653442).

1158598958 is a wasteful number, since it uses less digits than its factorization.

1158598958 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4787623 (or 4787612 counting only the distinct ones).

The product of its digits is 5184000, while the sum is 59.

The square root of 1158598958 is about 34038.1985128473. The cubic root of 1158598958 is about 1050.2943869944.

The spelling of 1158598958 in words is "one billion, one hundred fifty-eight million, five hundred ninety-eight thousand, nine hundred fifty-eight".