14721012 has 54 divisors (see below), whose sum is σ = 38950002. Its totient is φ = 4687584.

The previous prime is 14720983. The next prime is 14721013. The reversal of 14721012 is 21012741.

14721012 = 789² + 790² + ... + 811².

It can be written as a sum of positive squares in only one way, i.e., 9217296 + 5503716 = 3036^2 + 2346^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14721013) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 18658 + ... + 19430.

Almost surely, 2^14721012 is an apocalyptic number.

14721012 is a gapful number since it is divisible by the number (12) 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 14721012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19475001).

14721012 is an abundant number, since it is smaller than the sum of its proper divisors (24228990).

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

14721012 is a wasteful number, since it uses less digits than its factorization.

14721012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 829 (or 801 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 18.

The square root of 14721012 is about 3836.7971017504. The cubic root of 14721012 is about 245.0826432290.

Adding to 14721012 its reverse (21012741), we get a palindrome (35733753).

The spelling of 14721012 in words is "fourteen million, seven hundred twenty-one thousand, twelve".