401316541 has 4 divisors (see below), whose sum is σ = 412162972. Its totient is φ = 390470112.

The previous prime is 401316521. The next prime is 401316563. The reversal of 401316541 is 145613104.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 350251225 + 51065316 = 18715^2 + 7146^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-401316541 is a prime.

It is a super-2 number, since 2×401316541² = 322109932160409362, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401316511) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5423160 + ... + 5423233.

It is an arithmetic number, because the mean of its divisors is an integer number (103040743).

Almost surely, 2^401316541 is an apocalyptic number.

It is an amenable number.

401316541 is a deficient number, since it is larger than the sum of its proper divisors (10846431).

401316541 is a wasteful number, since it uses less digits than its factorization.

401316541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10846430.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 401316541 is about 20032.8864869744. The cubic root of 401316541 is about 737.6137775624.

Adding to 401316541 its reverse (145613104), we get a palindrome (546929645).

The spelling of 401316541 in words is "four hundred one million, three hundred sixteen thousand, five hundred forty-one".