201151605 has 16 divisors (see below), whose sum is σ = 323072640. Its totient is φ = 106870848.

The previous prime is 201151567. The next prime is 201151607. The reversal of 201151605 is 506151102.

It is not a de Polignac number, because 201151605 - 2⁷ = 201151477 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201151607) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21550 + ... + 29439.

It is an arithmetic number, because the mean of its divisors is an integer number (20192040).

Almost surely, 2^201151605 is an apocalyptic number.

It is an amenable number.

201151605 is a deficient number, since it is larger than the sum of its proper divisors (121921035).

201151605 is a wasteful number, since it uses less digits than its factorization.

201151605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51260.

The product of its (nonzero) digits is 300, while the sum is 21.

The square root of 201151605 is about 14182.7925670511. The cubic root of 201151605 is about 585.9238379819.

The spelling of 201151605 in words is "two hundred one million, one hundred fifty-one thousand, six hundred five".