209485150 has 96 divisors (see below), whose sum is σ = 474398208. Its totient is φ = 67267200.

The previous prime is 209485147. The next prime is 209485151. The reversal of 209485150 is 51584902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (209485151) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 426405 + ... + 426895.

It is an arithmetic number, because the mean of its divisors is an integer number (4941648).

Almost surely, 2^209485150 is an apocalyptic number.

209485150 is an abundant number, since it is smaller than the sum of its proper divisors (264913058).

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

209485150 is a wasteful number, since it uses less digits than its factorization.

209485150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 586 (or 581 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 34.

The square root of 209485150 is about 14473.6018323015. The cubic root of 209485150 is about 593.9060472579.

The spelling of 209485150 in words is "two hundred nine million, four hundred eighty-five thousand, one hundred fifty".