198159054 has 16 divisors (see below), whose sum is σ = 396561792. Its totient is φ = 66012408.

The previous prime is 198159047. The next prime is 198159061. The reversal of 198159054 is 450951891.

It is an interprime number because it is at equal distance from previous prime (198159047) and next prime (198159061).

It is a junction number, because it is equal to n+sod(n) for n = 198158997 and 198159015.

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, 1437 + ... + 19959.

It is an arithmetic number, because the mean of its divisors is an integer number (24785112).

Almost surely, 2^198159054 is an apocalyptic number.

198159054 is an abundant number, since it is smaller than the sum of its proper divisors (198402738).

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

198159054 is a wasteful number, since it uses less digits than its factorization.

198159054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20311.

The product of its (nonzero) digits is 64800, while the sum is 42.

The square root of 198159054 is about 14076.8978827013. The cubic root of 198159054 is about 583.0036943199.

The spelling of 198159054 in words is "one hundred ninety-eight million, one hundred fifty-nine thousand, fifty-four".