154231400 has 48 divisors (see below), whose sum is σ = 361033440. Its totient is φ = 61272000.

The previous prime is 154231373. The next prime is 154231421. The reversal of 154231400 is 4132451.

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

It is an unprimeable number.

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, 27647 + ... + 32753.

It is an arithmetic number, because the mean of its divisors is an integer number (7521530).

Almost surely, 2^154231400 is an apocalyptic number.

154231400 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 154231400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (180516720).

154231400 is an abundant number, since it is smaller than the sum of its proper divisors (206802040).

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

154231400 is a wasteful number, since it uses less digits than its factorization.

154231400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5274 (or 5265 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 154231400 is about 12418.9935179949. The cubic root of 154231400 is about 536.2791762407.

Adding to 154231400 its reverse (4132451), we get a palindrome (158363851).

The spelling of 154231400 in words is "one hundred fifty-four million, two hundred thirty-one thousand, four hundred".