401245541 has 4 divisors (see below), whose sum is σ = 401916000. Its totient is φ = 400575084.

The previous prime is 401245531. The next prime is 401245571. The reversal of 401245541 is 145542104.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-401245541 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 401245541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401245531) 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, 334331 + ... + 335528.

It is an arithmetic number, because the mean of its divisors is an integer number (100479000).

Almost surely, 2^401245541 is an apocalyptic number.

It is an amenable number.

401245541 is a deficient number, since it is larger than the sum of its proper divisors (670459).

401245541 is an equidigital number, since it uses as much as digits as its factorization.

401245541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 670458.

The product of its (nonzero) digits is 3200, while the sum is 26.

The square root of 401245541 is about 20031.1143224734. The cubic root of 401245541 is about 737.5702760189.

Adding to 401245541 its reverse (145542104), we get a palindrome (546787645).

The spelling of 401245541 in words is "four hundred one million, two hundred forty-five thousand, five hundred forty-one".