401374213 has 2 divisors, whose sum is σ = 401374214. Its totient is φ = 401374212.

The previous prime is 401374163. The next prime is 401374231. The reversal of 401374213 is 312473104.

Together with next prime (401374231) 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., 323352324 + 78021889 = 17982^2 + 8833^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-401374213 is a prime.

It is a super-2 number, since 2×401374213² = 322202517722738738, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (401374613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200687106 + 200687107.

It is an arithmetic number, because the mean of its divisors is an integer number (200687107).

Almost surely, 2^401374213 is an apocalyptic number.

It is an amenable number.

401374213 is a deficient number, since it is larger than the sum of its proper divisors (1).

401374213 is an equidigital number, since it uses as much as digits as its factorization.

401374213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 401374213 is about 20034.3258683690. The cubic root of 401374213 is about 737.6491092934.

The spelling of 401374213 in words is "four hundred one million, three hundred seventy-four thousand, two hundred thirteen".