201072651 has 48 divisors (see below), whose sum is σ = 315433440. Its totient is φ = 113418240.

The previous prime is 201072637. The next prime is 201072667. The reversal of 201072651 is 156270102.

It is not a de Polignac number, because 201072651 - 2⁷ = 201072523 is a prime.

It is not an unprimeable number, because it can be changed into a prime (201072671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 353095 + ... + 353663.

It is an arithmetic number, because the mean of its divisors is an integer number (6571530).

Almost surely, 2^201072651 is an apocalyptic number.

201072651 is a deficient number, since it is larger than the sum of its proper divisors (114360789).

201072651 is a wasteful number, since it uses less digits than its factorization.

201072651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 656 (or 643 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 24.

The square root of 201072651 is about 14180.0088504909. The cubic root of 201072651 is about 585.8471676438.

The spelling of 201072651 in words is "two hundred one million, seventy-two thousand, six hundred fifty-one".