201053642 has 16 divisors (see below), whose sum is σ = 305363520. Its totient is φ = 99271968.

The previous prime is 201053641. The next prime is 201053647. The reversal of 201053642 is 246350102.

It is a super-2 number, since 2×201053642² = 80845133922928328, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (201053641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75518 + ... + 78134.

It is an arithmetic number, because the mean of its divisors is an integer number (19085220).

Almost surely, 2^201053642 is an apocalyptic number.

201053642 is a deficient number, since it is larger than the sum of its proper divisors (104309878).

201053642 is a wasteful number, since it uses less digits than its factorization.

201053642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3085.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 201053642 is about 14179.3385600316. The cubic root of 201053642 is about 585.8287054616.

The spelling of 201053642 in words is "two hundred one million, fifty-three thousand, six hundred forty-two".