201072657 has 8 divisors (see below), whose sum is σ = 269872960. Its totient is φ = 133160400.

The previous prime is 201072637. The next prime is 201072667. The reversal of 201072657 is 756270102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 201072657 - 2⁸ = 201072401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201072637) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 221482 + ... + 222387.

It is an arithmetic number, because the mean of its divisors is an integer number (33734120).

Almost surely, 2^201072657 is an apocalyptic number.

It is an amenable number.

201072657 is a deficient number, since it is larger than the sum of its proper divisors (68800303).

201072657 is a wasteful number, since it uses less digits than its factorization.

201072657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 444023.

The product of its (nonzero) digits is 5880, while the sum is 30.

The square root of 201072657 is about 14180.0090620563. The cubic root of 201072657 is about 585.8471734711.

The spelling of 201072657 in words is "two hundred one million, seventy-two thousand, six hundred fifty-seven".