15981014 has 32 divisors (see below), whose sum is σ = 29268480. Its totient is φ = 6391872.

The previous prime is 15981013. The next prime is 15981019. The reversal of 15981014 is 41018951.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15981013) 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, 19007 + ... + 19829.

It is an arithmetic number, because the mean of its divisors is an integer number (914640).

Almost surely, 2^15981014 is an apocalyptic number.

15981014 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

15981014 is a deficient number, since it is larger than the sum of its proper divisors (13287466).

15981014 is a wasteful number, since it uses less digits than its factorization.

15981014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 924.

The product of its (nonzero) digits is 1440, while the sum is 29.

The square root of 15981014 is about 3997.6260455425. The cubic root of 15981014 is about 251.8845002748.

Adding to 15981014 its reverse (41018951), we get a palindrome (56999965).

The spelling of 15981014 in words is "fifteen million, nine hundred eighty-one thousand, fourteen".