401005051 has 8 divisors (see below), whose sum is σ = 432406800. Its totient is φ = 370632960.

The previous prime is 401005037. The next prime is 401005139. The reversal of 401005051 is 150500104.

It is a happy number.

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 401005051 - 2⁵ = 401005019 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (401005751) 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, 256606 + ... + 258163.

It is an arithmetic number, because the mean of its divisors is an integer number (54050850).

Almost surely, 2^401005051 is an apocalyptic number.

401005051 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

401005051 is a deficient number, since it is larger than the sum of its proper divisors (31401749).

401005051 is a wasteful number, since it uses less digits than its factorization.

401005051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 514829.

The product of its (nonzero) digits is 100, while the sum is 16.

The square root of 401005051 is about 20025.1105115552. The cubic root of 401005051 is about 737.4228901856.

Adding to 401005051 its reverse (150500104), we get a palindrome (551505155).

The spelling of 401005051 in words is "four hundred one million, five thousand, fifty-one".