471521001 has 8 divisors (see below), whose sum is σ = 718508224. Its totient is φ = 269440560.

The previous prime is 471520997. The next prime is 471521003. The reversal of 471521001 is 100125174.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 471521001 - 2² = 471520997 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 22453381 = 471521001 / (4 + 7 + 1 + 5 + 2 + 1 + 0 + 0 + 1).

It is not an unprimeable number, because it can be changed into a prime (471521003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11226670 + ... + 11226711.

It is an arithmetic number, because the mean of its divisors is an integer number (89813528).

Almost surely, 2^471521001 is an apocalyptic number.

It is an amenable number.

471521001 is a deficient number, since it is larger than the sum of its proper divisors (246987223).

471521001 is a wasteful number, since it uses less digits than its factorization.

471521001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22453391.

The product of its (nonzero) digits is 280, while the sum is 21.

The square root of 471521001 is about 21714.5343261144. The cubic root of 471521001 is about 778.3358124764.

Adding to 471521001 its reverse (100125174), we get a palindrome (571646175).

The spelling of 471521001 in words is "four hundred seventy-one million, five hundred twenty-one thousand, one".