4214137981 has 2 divisors, whose sum is σ = 4214137982. Its totient is φ = 4214137980.

The previous prime is 4214137979. The next prime is 4214138021. The reversal of 4214137981 is 1897314124.

It is an a-pointer prime, because the next prime (4214138021) can be obtained adding 4214137981 to its sum of digits (40).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3217725625 + 996412356 = 56725^2 + 31566^2 .

It is a cyclic number.

It is not a de Polignac number, because 4214137981 - 2¹ = 4214137979 is a prime.

It is a super-2 number, since 2×4214137981² = 35517917845813512722, which contains 22 as substring.

Together with 4214137979, it forms a pair of twin primes.

It is a congruent number.

It is a weakly prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2107068990 + 2107068991.

It is an arithmetic number, because the mean of its divisors is an integer number (2107068991).

Almost surely, 2^4214137981 is an apocalyptic number.

It is an amenable number.

4214137981 is a deficient number, since it is larger than the sum of its proper divisors (1).

4214137981 is an equidigital number, since it uses as much as digits as its factorization.

4214137981 is an evil number, because the sum of its binary digits is even.

The product of its digits is 48384, while the sum is 40.

The square root of 4214137981 is about 64916.3922364760. The cubic root of 4214137981 is about 1615.2369854187.

The spelling of 4214137981 in words is "four billion, two hundred fourteen million, one hundred thirty-seven thousand, nine hundred eighty-one".