64131001 has 4 divisors (see below), whose sum is σ = 69961104. Its totient is φ = 58300900.

The previous prime is 64130959. The next prime is 64131037. The reversal of 64131001 is 10013146.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 64131001 - 2⁷ = 64130873 is a prime.

It is a super-2 number, since 2×64131001² = 8225570578524002, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64131071) 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, 2915035 + ... + 2915056.

It is an arithmetic number, because the mean of its divisors is an integer number (17490276).

Almost surely, 2^64131001 is an apocalyptic number.

It is an amenable number.

64131001 is a deficient number, since it is larger than the sum of its proper divisors (5830103).

64131001 is a wasteful number, since it uses less digits than its factorization.

64131001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5830102.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 64131001 is about 8008.1833770213. The cubic root of 64131001 is about 400.2727327499.

Adding to 64131001 its reverse (10013146), we get a palindrome (74144147).

The spelling of 64131001 in words is "sixty-four million, one hundred thirty-one thousand, one".