201047638 has 12 divisors (see below), whose sum is σ = 329095908. Its totient is φ = 91355060.

The previous prime is 201047629. The next prime is 201047659. The reversal of 201047638 is 836740102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 64995 + ... + 68017.

It is an arithmetic number, because the mean of its divisors is an integer number (27424659).

Almost surely, 2^201047638 is an apocalyptic number.

201047638 is a deficient number, since it is larger than the sum of its proper divisors (128048270).

201047638 is an frugal number, since it uses more digits than its factorization.

201047638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6059 (or 3036 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 201047638 is about 14179.1268419462. The cubic root of 201047638 is about 585.8228739324.

The spelling of 201047638 in words is "two hundred one million, forty-seven thousand, six hundred thirty-eight".