7401281213 has 2 divisors, whose sum is σ = 7401281214. Its totient is φ = 7401281212.

The previous prime is 7401281189. The next prime is 7401281231. The reversal of 7401281213 is 3121821047.

Together with next prime (7401281231) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7166976964 + 234304249 = 84658^2 + 15307^2 .

It is an emirp because it is prime and its reverse (3121821047) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7401281213 - 2²⁸ = 7132845757 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7401221213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3700640606 + 3700640607.

It is an arithmetic number, because the mean of its divisors is an integer number (3700640607).

Almost surely, 2^7401281213 is an apocalyptic number.

It is an amenable number.

7401281213 is a deficient number, since it is larger than the sum of its proper divisors (1).

7401281213 is an equidigital number, since it uses as much as digits as its factorization.

7401281213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2688, while the sum is 29.

The square root of 7401281213 is about 86030.6992474198. The cubic root of 7401281213 is about 1948.8076175592.

The spelling of 7401281213 in words is "seven billion, four hundred one million, two hundred eighty-one thousand, two hundred thirteen".