10161505 has 4 divisors (see below), whose sum is σ = 12193812. Its totient is φ = 8129200.

The previous prime is 10161499. The next prime is 10161551. The reversal of 10161505 is 50516101.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4511376 + 5650129 = 2124^2 + 2377^2 .

It is not a de Polignac number, because 10161505 - 2³ = 10161497 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1016146 + ... + 1016155.

It is an arithmetic number, because the mean of its divisors is an integer number (3048453).

Almost surely, 2^10161505 is an apocalyptic number.

It is an amenable number.

10161505 is a deficient number, since it is larger than the sum of its proper divisors (2032307).

10161505 is an equidigital number, since it uses as much as digits as its factorization.

10161505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2032306.

The product of its (nonzero) digits is 150, while the sum is 19.

The square root of 10161505 is about 3187.7115616065. The cubic root of 10161505 is about 216.5971203485.

Adding to 10161505 its reverse (50516101), we get a palindrome (60677606).

The spelling of 10161505 in words is "ten million, one hundred sixty-one thousand, five hundred five".