201165969 has 16 divisors (see below), whose sum is σ = 274417920. Its totient is φ = 131022720.

The previous prime is 201165949. The next prime is 201166013. The reversal of 201165969 is 969561102.

It is not a de Polignac number, because 201165969 - 2¹³ = 201157777 is a prime.

It is a super-2 number, since 2×201165969² = 80935494167417922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (201165949) 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, 116029 + ... + 117749.

It is an arithmetic number, because the mean of its divisors is an integer number (17151120).

Almost surely, 2^201165969 is an apocalyptic number.

It is an amenable number.

201165969 is a deficient number, since it is larger than the sum of its proper divisors (73251951).

201165969 is a wasteful number, since it uses less digits than its factorization.

201165969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2600.

The product of its (nonzero) digits is 29160, while the sum is 39.

The square root of 201165969 is about 14183.2989462960. The cubic root of 201165969 is about 585.9377843611.

The spelling of 201165969 in words is "two hundred one million, one hundred sixty-five thousand, nine hundred sixty-nine".