641472125 has 16 divisors (see below), whose sum is σ = 914923776. Its totient is φ = 439866000.

The previous prime is 641472089. The next prime is 641472133. The reversal of 641472125 is 521274146.

It is not a de Polignac number, because 641472125 - 2¹² = 641468029 is a prime.

It is a super-3 number, since 3×641472125³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 641472091 and 641472100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 365681 + ... + 367430.

It is an arithmetic number, because the mean of its divisors is an integer number (57182736).

Almost surely, 2^641472125 is an apocalyptic number.

It is an amenable number.

641472125 is a deficient number, since it is larger than the sum of its proper divisors (273451651).

641472125 is an equidigital number, since it uses as much as digits as its factorization.

641472125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 733133 (or 733123 counting only the distinct ones).

The product of its digits is 13440, while the sum is 32.

The square root of 641472125 is about 25327.2999942750. The cubic root of 641472125 is about 862.4341194516.

The spelling of 641472125 in words is "six hundred forty-one million, four hundred seventy-two thousand, one hundred twenty-five".