154230140 has 24 divisors (see below), whose sum is σ = 327032160. Its totient is φ = 61092288.

The previous prime is 154230127. The next prime is 154230169. The reversal of 154230140 is 41032451.

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

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, 35375 + ... + 39494.

It is an arithmetic number, because the mean of its divisors is an integer number (13626340).

Almost surely, 2^154230140 is an apocalyptic number.

154230140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

154230140 is an abundant number, since it is smaller than the sum of its proper divisors (172802020).

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

154230140 is a wasteful number, since it uses less digits than its factorization.

154230140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74981 (or 74979 counting only the distinct ones).

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

The square root of 154230140 is about 12418.9427891427. The cubic root of 154230140 is about 536.2777158515.

Adding to 154230140 its reverse (41032451), we get a palindrome (195262591).

The spelling of 154230140 in words is "one hundred fifty-four million, two hundred thirty thousand, one hundred forty".