401130551 has 4 divisors (see below), whose sum is σ = 401347272. Its totient is φ = 400913832.

The previous prime is 401130539. The next prime is 401130577. The reversal of 401130551 is 155031104.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-401130551 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401130151) 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, 105560 + ... + 109293.

It is an arithmetic number, because the mean of its divisors is an integer number (100336818).

Almost surely, 2^401130551 is an apocalyptic number.

401130551 is a deficient number, since it is larger than the sum of its proper divisors (216721).

401130551 is a wasteful number, since it uses less digits than its factorization.

401130551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216720.

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 401130551 is about 20028.2438321486. The cubic root of 401130551 is about 737.4998110121.

Adding to 401130551 its reverse (155031104), we get a palindrome (556161655).

The spelling of 401130551 in words is "four hundred one million, one hundred thirty thousand, five hundred fifty-one".