1521472641 has 8 divisors (see below), whose sum is σ = 2184678720. Its totient is φ = 936290832.

The previous prime is 1521472607. The next prime is 1521472651. The reversal of 1521472641 is 1462741251.

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

It is not a de Polignac number, because 1521472641 - 2⁶ = 1521472577 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (1521472651) 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, 19506021 + ... + 19506098.

It is an arithmetic number, because the mean of its divisors is an integer number (273084840).

Almost surely, 2^1521472641 is an apocalyptic number.

It is an amenable number.

1521472641 is a deficient number, since it is larger than the sum of its proper divisors (663206079).

1521472641 is a wasteful number, since it uses less digits than its factorization.

1521472641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39012135.

The product of its digits is 13440, while the sum is 33.

The square root of 1521472641 is about 39006.0590293354. The cubic root of 1521472641 is about 1150.1506144258.

The spelling of 1521472641 in words is "one billion, five hundred twenty-one million, four hundred seventy-two thousand, six hundred forty-one".