64160401 has 4 divisors (see below), whose sum is σ = 64320804. Its totient is φ = 64000000.

The previous prime is 64160399. The next prime is 64160417. The reversal of 64160401 is 10406146.

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

It can be written as a sum of positive squares in 2 ways, for example, as 63984001 + 176400 = 7999^2 + 420^2 .

It is a 3-Lehmer number, since φ(64160401) divides (64160401-1)³.

It is a cyclic number.

It is not a de Polignac number, because 64160401 - 2¹ = 64160399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64160461) by changing a digit.

It is a nontrivial repunit in base 400.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 79600 + ... + 80401.

It is an arithmetic number, because the mean of its divisors is an integer number (16080201).

Almost surely, 2^64160401 is an apocalyptic number.

It is an amenable number.

64160401 is a deficient number, since it is larger than the sum of its proper divisors (160403).

64160401 is a wasteful number, since it uses less digits than its factorization.

64160401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160402.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 64160401 is about 8010.0187889917. The cubic root of 64160401 is about 400.3338899662. Note that the first 3 decimals are identical.

Adding to 64160401 its reverse (10406146), we get a palindrome (74566547).

The spelling of 64160401 in words is "sixty-four million, one hundred sixty thousand, four hundred one".