146778900 has 36 divisors (see below), whose sum is σ = 424681152. Its totient is φ = 39140960.

The previous prime is 146778899. The next prime is 146778911. The reversal of 146778900 is 9877641.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 244332 + ... + 244931.

Almost surely, 2^146778900 is an apocalyptic number.

146778900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

146778900 is an abundant number, since it is smaller than the sum of its proper divisors (277902252).

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

146778900 is a wasteful number, since it uses less digits than its factorization.

146778900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 489280 (or 489273 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 42.

The square root of 146778900 is about 12115.2342115206. The cubic root of 146778900 is about 527.4984763700.

The spelling of 146778900 in words is "one hundred forty-six million, seven hundred seventy-eight thousand, nine hundred".