15961085 has 16 divisors (see below), whose sum is σ = 22192896. Its totient is φ = 10793088.

The previous prime is 15961073. The next prime is 15961111. The reversal of 15961085 is 58016951.

It is a cyclic number.

It is not a de Polignac number, because 15961085 - 2⁶ = 15961021 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 569 + ... + 5678.

It is an arithmetic number, because the mean of its divisors is an integer number (1387056).

Almost surely, 2^15961085 is an apocalyptic number.

It is an amenable number.

15961085 is a deficient number, since it is larger than the sum of its proper divisors (6231811).

15961085 is an equidigital number, since it uses as much as digits as its factorization.

15961085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6332.

The product of its (nonzero) digits is 10800, while the sum is 35.

The square root of 15961085 is about 3995.1326636296. The cubic root of 15961085 is about 251.7797531816.

The spelling of 15961085 in words is "fifteen million, nine hundred sixty-one thousand, eighty-five".