401058901 has 2 divisors, whose sum is σ = 401058902. Its totient is φ = 401058900.

The previous prime is 401058899. The next prime is 401058913. The reversal of 401058901 is 109850104.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 401040676 + 18225 = 20026^2 + 135^2 .

It is a cyclic number.

It is not a de Polignac number, because 401058901 - 2¹ = 401058899 is a prime.

Together with 401058899, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 401058901.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (401058941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200529450 + 200529451.

It is an arithmetic number, because the mean of its divisors is an integer number (200529451).

Almost surely, 2^401058901 is an apocalyptic number.

It is an amenable number.

401058901 is a deficient number, since it is larger than the sum of its proper divisors (1).

401058901 is an equidigital number, since it uses as much as digits as its factorization.

401058901 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440, while the sum is 28.

The square root of 401058901 is about 20026.4550282870. The cubic root of 401058901 is about 737.4558976213.

The spelling of 401058901 in words is "four hundred one million, fifty-eight thousand, nine hundred one".