154200144 has 40 divisors (see below), whose sum is σ = 455258560. Its totient is φ = 44057088.

The previous prime is 154200121. The next prime is 154200173. The reversal of 154200144 is 441002451.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 154200144.

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, 229129 + ... + 229800.

It is an arithmetic number, because the mean of its divisors is an integer number (11381464).

Almost surely, 2^154200144 is an apocalyptic number.

154200144 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

154200144 is an abundant number, since it is smaller than the sum of its proper divisors (301058416).

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

154200144 is a wasteful number, since it uses less digits than its factorization.

154200144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 458947 (or 458941 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 154200144 is about 12417.7350591805. The cubic root of 154200144 is about 536.2429469679.

Adding to 154200144 its reverse (441002451), we get a palindrome (595202595).

The spelling of 154200144 in words is "one hundred fifty-four million, two hundred thousand, one hundred forty-four".