10161520 has 40 divisors (see below), whose sum is σ = 23971680. Its totient is φ = 4005120.

The previous prime is 10161499. The next prime is 10161551. The reversal of 10161520 is 2516101.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 10161494 and 10161503.

It is a congruent 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 7 ways as a sum of consecutive naturals, for example, 4786 + ... + 6574.

It is an arithmetic number, because the mean of its divisors is an integer number (599292).

Almost surely, 2^10161520 is an apocalyptic number.

10161520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10161520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11985840).

10161520 is an abundant number, since it is smaller than the sum of its proper divisors (13810160).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10161520 is a wasteful number, since it uses less digits than its factorization.

10161520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1873 (or 1867 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 16.

The square root of 10161520 is about 3187.7139143907. The cubic root of 10161520 is about 216.5972269257.

Adding to 10161520 its reverse (2516101), we get a palindrome (12677621).

The spelling of 10161520 in words is "ten million, one hundred sixty-one thousand, five hundred twenty".