21614029 has 2 divisors, whose sum is σ = 21614030. Its totient is φ = 21614028.

The previous prime is 21614023. The next prime is 21614057. The reversal of 21614029 is 92041612.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16892100 + 4721929 = 4110^2 + 2173^2 .

It is a cyclic number.

It is not a de Polignac number, because 21614029 - 2⁹ = 21613517 is a prime.

It is a super-2 number, since 2×21614029² = 934332499225682, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21613994 and 21614012.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21614023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10807014 + 10807015.

It is an arithmetic number, because the mean of its divisors is an integer number (10807015).

Almost surely, 2^21614029 is an apocalyptic number.

It is an amenable number.

21614029 is a deficient number, since it is larger than the sum of its proper divisors (1).

21614029 is an equidigital number, since it uses as much as digits as its factorization.

21614029 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 21614029 is about 4649.0890505560. The cubic root of 21614029 is about 278.5556103475. Note that the first 3 decimals are identical.

The spelling of 21614029 in words is "twenty-one million, six hundred fourteen thousand, twenty-nine".