1198158054 has 8 divisors (see below), whose sum is σ = 2396316120. Its totient is φ = 399386016.

The previous prime is 1198158043. The next prime is 1198158077. The reversal of 1198158054 is 4508518911.

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

1198158054 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 1198157997 and 1198158015.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 99846499 + ... + 99846510.

It is an arithmetic number, because the mean of its divisors is an integer number (299539515).

Almost surely, 2^1198158054 is an apocalyptic number.

1198158054 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1198158054 is a wasteful number, since it uses less digits than its factorization.

1198158054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199693014.

The product of its (nonzero) digits is 57600, while the sum is 42.

The square root of 1198158054 is about 34614.4197409114. The cubic root of 1198158054 is about 1062.1145797265.

The spelling of 1198158054 in words is "one billion, one hundred ninety-eight million, one hundred fifty-eight thousand, fifty-four".