201081465 has 96 divisors (see below), whose sum is σ = 401856000. Its totient is φ = 92192256.

The previous prime is 201081451. The next prime is 201081467. The reversal of 201081465 is 564180102.

It is not a de Polignac number, because 201081465 - 2⁴ = 201081449 is a prime.

It is not an unprimeable number, because it can be changed into a prime (201081467) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 877971 + ... + 878199.

It is an arithmetic number, because the mean of its divisors is an integer number (4186000).

Almost surely, 2^201081465 is an apocalyptic number.

It is an amenable number.

201081465 is a deficient number, since it is larger than the sum of its proper divisors (200774535).

201081465 is a wasteful number, since it uses less digits than its factorization.

201081465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 351 (or 348 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The square root of 201081465 is about 14180.3196367360. The cubic root of 201081465 is about 585.8557277032.

The spelling of 201081465 in words is "two hundred one million, eighty-one thousand, four hundred sixty-five".