154442100 has 72 divisors (see below), whose sum is σ = 451047520. Its totient is φ = 40798080.

The previous prime is 154442063. The next prime is 154442129. The reversal of 154442100 is 1244451.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30339 + ... + 35061.

Almost surely, 2^154442100 is an apocalyptic number.

154442100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 154442100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (225523760).

154442100 is an abundant number, since it is smaller than the sum of its proper divisors (296605420).

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

154442100 is a wasteful number, since it uses less digits than its factorization.

154442100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4849 (or 4842 counting only the distinct ones).

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

The square root of 154442100 is about 12427.4735968338. The cubic root of 154442100 is about 536.5232739766.

Adding to 154442100 its reverse (1244451), we get a palindrome (155686551).

The spelling of 154442100 in words is "one hundred fifty-four million, four hundred forty-two thousand, one hundred".