401202091 has 8 divisors (see below), whose sum is σ = 426340800. Its totient is φ = 376234368.

The previous prime is 401202089. The next prime is 401202101. The reversal of 401202091 is 190202104.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 401202091 - 2¹ = 401202089 is a prime.

It is a super-3 number, since 3×401202091³ (a number of 27 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (401202071) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37891 + ... + 47308.

It is an arithmetic number, because the mean of its divisors is an integer number (53292600).

Almost surely, 2^401202091 is an apocalyptic number.

401202091 is a deficient number, since it is larger than the sum of its proper divisors (25138709).

401202091 is a wasteful number, since it uses less digits than its factorization.

401202091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85493.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 401202091 is about 20030.0297303823. The cubic root of 401202091 is about 737.5436517684.

Adding to 401202091 its reverse (190202104), we get a palindrome (591404195).

The spelling of 401202091 in words is "four hundred one million, two hundred two thousand, ninety-one".