401327251 has 8 divisors (see below), whose sum is σ = 432409824. Its totient is φ = 370274880.

The previous prime is 401327249. The next prime is 401327273. The reversal of 401327251 is 152723104.

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 401327251 - 2¹ = 401327249 is a prime.

It is a super-2 number, since 2×401327251² = 322127124790434002, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (401327051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25410 + ... + 38056.

It is an arithmetic number, because the mean of its divisors is an integer number (54051228).

Almost surely, 2^401327251 is an apocalyptic number.

401327251 is a deficient number, since it is larger than the sum of its proper divisors (31082573).

401327251 is a wasteful number, since it uses less digits than its factorization.

401327251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15101.

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 401327251 is about 20033.1537956459. The cubic root of 401327251 is about 737.6203391105.

The spelling of 401327251 in words is "four hundred one million, three hundred twenty-seven thousand, two hundred fifty-one".