210154242 has 32 divisors (see below), whose sum is σ = 435600000. Its totient is φ = 67511808.

The previous prime is 210154237. The next prime is 210154253. The reversal of 210154242 is 242451012.

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, 167634 + ... + 168882.

It is an arithmetic number, because the mean of its divisors is an integer number (13612500).

Almost surely, 2^210154242 is an apocalyptic number.

210154242 is an abundant number, since it is smaller than the sum of its proper divisors (225445758).

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

210154242 is a wasteful number, since it uses less digits than its factorization.

210154242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2250.

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 210154242 is about 14496.6976239418. The cubic root of 210154242 is about 594.5376838544.

The spelling of 210154242 in words is "two hundred ten million, one hundred fifty-four thousand, two hundred forty-two".