154400198 has 8 divisors (see below), whose sum is σ = 232813440. Its totient is φ = 76795720.

The previous prime is 154400167. The next prime is 154400231. The reversal of 154400198 is 891004451.

154400198 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-2 number, since 2×154400198² = 47678842284878408, which contains 22 as substring.

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, 201713 + ... + 202476.

It is an arithmetic number, because the mean of its divisors is an integer number (29101680).

Almost surely, 2^154400198 is an apocalyptic number.

154400198 is a deficient number, since it is larger than the sum of its proper divisors (78413242).

154400198 is a wasteful number, since it uses less digits than its factorization.

154400198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 404382.

The product of its (nonzero) digits is 5760, while the sum is 32.

The square root of 154400198 is about 12425.7876209116. The cubic root of 154400198 is about 536.4747478478.

The spelling of 154400198 in words is "one hundred fifty-four million, four hundred thousand, one hundred ninety-eight".