210425149 has 4 divisors (see below), whose sum is σ = 229554720. Its totient is φ = 191295580.

The previous prime is 210425147. The next prime is 210425153. The reversal of 210425149 is 941524012.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 210425149 - 2¹ = 210425147 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210425143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9564769 + ... + 9564790.

It is an arithmetic number, because the mean of its divisors is an integer number (57388680).

Almost surely, 2^210425149 is an apocalyptic number.

It is an amenable number.

210425149 is a deficient number, since it is larger than the sum of its proper divisors (19129571).

210425149 is a wasteful number, since it uses less digits than its factorization.

210425149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19129570.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 210425149 is about 14506.0383633851. The cubic root of 210425149 is about 594.7930443294.

The spelling of 210425149 in words is "two hundred ten million, four hundred twenty-five thousand, one hundred forty-nine".