401201387 has 2 divisors, whose sum is σ = 401201388. Its totient is φ = 401201386.

The previous prime is 401201369. The next prime is 401201393. The reversal of 401201387 is 783102104.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-401201387 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (401201327) 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, 200600693 + 200600694.

It is an arithmetic number, because the mean of its divisors is an integer number (200600694).

Almost surely, 2^401201387 is an apocalyptic number.

401201387 is a deficient number, since it is larger than the sum of its proper divisors (1).

401201387 is an equidigital number, since it uses as much as digits as its factorization.

401201387 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 401201387 is about 20030.0121567612. The cubic root of 401201387 is about 737.5432203724.

The spelling of 401201387 in words is "four hundred one million, two hundred one thousand, three hundred eighty-seven".