21014514 has 12 divisors (see below), whose sum is σ = 45531486. Its totient is φ = 7004832.

The previous prime is 21014501. The next prime is 21014527. The reversal of 21014514 is 41541012.

21014514 is a `hidden beast` number, since 210 + 1 + 451 + 4 = 666.

It is an interprime number because it is at equal distance from previous prime (21014501) and next prime (21014527).

It can be written as a sum of positive squares in only one way, i.e., 15468489 + 5546025 = 3933^2 + 2355^2 .

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 1167473 = 21014514 / (2 + 1 + 0 + 1 + 4 + 5 + 1 + 4).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 583719 + ... + 583754.

Almost surely, 2^21014514 is an apocalyptic number.

21014514 is an abundant number, since it is smaller than the sum of its proper divisors (24516972).

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

21014514 is a wasteful number, since it uses less digits than its factorization.

21014514 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1167481 (or 1167478 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 21014514 is about 4584.1590286551. The cubic root of 21014514 is about 275.9559633586.

Adding to 21014514 its reverse (41541012), we get a palindrome (62555526).

It can be divided in two parts, 21014 and 514, that added together give a triangular number (21528 = T₂₀₇).

The spelling of 21014514 in words is "twenty-one million, fourteen thousand, five hundred fourteen".