153978500 has 48 divisors (see below), whose sum is σ = 362172720. Its totient is φ = 56851200.

The previous prime is 153978499. The next prime is 153978551. The reversal of 153978500 is 5879351.

153978500 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 124188736 + 29789764 = 11144^2 + 5458^2 .

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 15 ways as a sum of consecutive naturals, for example, 5345 + ... + 18344.

It is an arithmetic number, because the mean of its divisors is an integer number (7545265).

Almost surely, 2^153978500 is an apocalyptic number.

153978500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

153978500 is an abundant number, since it is smaller than the sum of its proper divisors (208194220).

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

153978500 is a wasteful number, since it uses less digits than its factorization.

153978500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23721 (or 23709 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 38.

The square root of 153978500 is about 12408.8073560677. The cubic root of 153978500 is about 535.9858957082.

The spelling of 153978500 in words is "one hundred fifty-three million, nine hundred seventy-eight thousand, five hundred".