401200051 has 16 divisors (see below), whose sum is σ = 490504896. Its totient is φ = 320311296.

The previous prime is 401200003. The next prime is 401200061. The reversal of 401200051 is 150002104.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-401200051 is a prime.

It is a super-2 number, since 2×401200051² = 321922961844805202, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (401200001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5836 + ... + 28921.

It is an arithmetic number, because the mean of its divisors is an integer number (30656556).

Almost surely, 2^401200051 is an apocalyptic number.

401200051 is a deficient number, since it is larger than the sum of its proper divisors (89304845).

401200051 is a wasteful number, since it uses less digits than its factorization.

401200051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34878.

The product of its (nonzero) digits is 40, while the sum is 13.

The square root of 401200051 is about 20029.9788067786. The cubic root of 401200051 is about 737.5424016989.

Adding to 401200051 its reverse (150002104), we get a palindrome (551202155).

The spelling of 401200051 in words is "four hundred one million, two hundred thousand, fifty-one".