101331265 has 12 divisors (see below), whose sum is σ = 141450516. Its totient is φ = 69484128.

The previous prime is 101331259. The next prime is 101331289. The reversal of 101331265 is 562133101.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 61905424 + 39425841 = 7868^2 + 6279^2 .

It is not a de Polignac number, because 101331265 - 2³ = 101331257 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 206554 + ... + 207043.

It is an arithmetic number, because the mean of its divisors is an integer number (11787543).

Almost surely, 2^101331265 is an apocalyptic number.

It is an amenable number.

101331265 is a deficient number, since it is larger than the sum of its proper divisors (40119251).

101331265 is an equidigital number, since it uses as much as digits as its factorization.

101331265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 413616 (or 413609 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 101331265 is about 10066.3431791292. The cubic root of 101331265 is about 466.2095384726.

Adding to 101331265 its reverse (562133101), we get a palindrome (663464366).

The spelling of 101331265 in words is "one hundred one million, three hundred thirty-one thousand, two hundred sixty-five".