401599291 has 2 divisors, whose sum is σ = 401599292. Its totient is φ = 401599290.

The previous prime is 401599243. The next prime is 401599339. The reversal of 401599291 is 192995104.

It is a balanced prime because it is at equal distance from previous prime (401599243) and next prime (401599339).

It is a cyclic number.

It is not a de Polignac number, because 401599291 - 2⁹ = 401598779 is a prime.

It is a super-2 number, since 2×401599291² = 322563981063405362, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (401599201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200799645 + 200799646.

It is an arithmetic number, because the mean of its divisors is an integer number (200799646).

Almost surely, 2^401599291 is an apocalyptic number.

401599291 is a deficient number, since it is larger than the sum of its proper divisors (1).

401599291 is an equidigital number, since it uses as much as digits as its factorization.

401599291 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 29160, while the sum is 40.

The square root of 401599291 is about 20039.9423901368. The cubic root of 401599291 is about 737.7869669800.

The spelling of 401599291 in words is "four hundred one million, five hundred ninety-nine thousand, two hundred ninety-one".