154998 has 24 divisors (see below), whose sum is σ = 343200. Its totient is φ = 50544.

The previous prime is 154991. The next prime is 155003. The reversal of 154998 is 899451.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 154998.

It is not an unprimeable number, because it can be changed into a prime (154991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1368 + ... + 1476.

It is an arithmetic number, because the mean of its divisors is an integer number (14300).

2¹⁵⁴⁹⁹⁸ is an apocalyptic number.

154998 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

154998 is an abundant number, since it is smaller than the sum of its proper divisors (188202).

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

154998 is a wasteful number, since it uses less digits than its factorization.

154998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196 (or 193 counting only the distinct ones).

The product of its digits is 12960, while the sum is 36.

The square root of 154998 is about 393.6978536899. The cubic root of 154998 is about 53.7166225082.

The spelling of 154998 in words is "one hundred fifty-four thousand, nine hundred ninety-eight".