401641517 has 2 divisors, whose sum is σ = 401641518. Its totient is φ = 401641516.

The previous prime is 401641481. The next prime is 401641553. The reversal of 401641517 is 715146104.

It is a balanced prime because it is at equal distance from previous prime (401641481) and next prime (401641553).

It can be written as a sum of positive squares in only one way, i.e., 397842916 + 3798601 = 19946^2 + 1949^2 .

It is a cyclic number.

It is not a de Polignac number, because 401641517 - 2¹² = 401637421 is a prime.

It is a super-2 number, since 2×401641517² = 322631816356122578, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 401641517.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (401641567) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200820758 + 200820759.

It is an arithmetic number, because the mean of its divisors is an integer number (200820759).

Almost surely, 2^401641517 is an apocalyptic number.

It is an amenable number.

401641517 is a deficient number, since it is larger than the sum of its proper divisors (1).

401641517 is an equidigital number, since it uses as much as digits as its factorization.

401641517 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3360, while the sum is 29.

The square root of 401641517 is about 20040.9959083874. The cubic root of 401641517 is about 737.8128241809.

The spelling of 401641517 in words is "four hundred one million, six hundred forty-one thousand, five hundred seventeen".