401140510541 has 2 divisors, whose sum is σ = 401140510542. Its totient is φ = 401140510540.

The previous prime is 401140510471. The next prime is 401140510579. The reversal of 401140510541 is 145015041104.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 400978966441 + 161544100 = 633229^2 + 12710^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-401140510541 is a prime.

It is a super-2 number, since 2×401140510541² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 401140510541.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (401140513541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200570255270 + 200570255271.

It is an arithmetic number, because the mean of its divisors is an integer number (200570255271).

Almost surely, 2^401140510541 is an apocalyptic number.

It is an amenable number.

401140510541 is a deficient number, since it is larger than the sum of its proper divisors (1).

401140510541 is an equidigital number, since it uses as much as digits as its factorization.

401140510541 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1600, while the sum is 26.

Adding to 401140510541 its reverse (145015041104), we get a palindrome (546155551645).

The spelling of 401140510541 in words is "four hundred one billion, one hundred forty million, five hundred ten thousand, five hundred forty-one".