201455265 has 32 divisors (see below), whose sum is σ = 356898816. Its totient is φ = 96212160.

The previous prime is 201455249. The next prime is 201455297. The reversal of 201455265 is 562554102.

It is not a de Polignac number, because 201455265 - 2⁴ = 201455249 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1944 + ... + 20166.

It is an arithmetic number, because the mean of its divisors is an integer number (11153088).

Almost surely, 2^201455265 is an apocalyptic number.

It is an amenable number.

201455265 is a deficient number, since it is larger than the sum of its proper divisors (155443551).

201455265 is a wasteful number, since it uses less digits than its factorization.

201455265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18309.

The product of its (nonzero) digits is 12000, while the sum is 30.

The square root of 201455265 is about 14193.4937559432. The cubic root of 201455265 is about 586.2185281105.

The spelling of 201455265 in words is "two hundred one million, four hundred fifty-five thousand, two hundred sixty-five".