154540100 has 144 divisors (see below), whose sum is σ = 401599296. Its totient is φ = 50880000.

The previous prime is 154540097. The next prime is 154540147. The reversal of 154540100 is 1045451.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1444247 + ... + 1444353.

It is an arithmetic number, because the mean of its divisors is an integer number (2788884).

Almost surely, 2^154540100 is an apocalyptic number.

154540100 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 154540100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (200799648).

154540100 is an abundant number, since it is smaller than the sum of its proper divisors (247059196).

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

154540100 is a wasteful number, since it uses less digits than its factorization.

154540100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246 (or 239 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 154540100 is about 12431.4158485669. The cubic root of 154540100 is about 536.6367321669.

Adding to 154540100 its reverse (1045451), we get a palindrome (155585551).

The spelling of 154540100 in words is "one hundred fifty-four million, five hundred forty thousand, one hundred".