3453451521 has 32 divisors (see below), whose sum is σ = 5031266688. Its totient is φ = 2094336000.

The previous prime is 3453451517. The next prime is 3453451531. The reversal of 3453451521 is 1251543543.

It is not a de Polignac number, because 3453451521 - 2² = 3453451517 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3453451501) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 947715 + ... + 951351.

It is an arithmetic number, because the mean of its divisors is an integer number (157227084).

Almost surely, 2^3453451521 is an apocalyptic number.

It is an amenable number.

3453451521 is a deficient number, since it is larger than the sum of its proper divisors (1577815167).

3453451521 is a wasteful number, since it uses less digits than its factorization.

3453451521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4001.

The product of its digits is 36000, while the sum is 33.

The square root of 3453451521 is about 58766.0745753875. The cubic root of 3453451521 is about 1511.5335385887.

The spelling of 3453451521 in words is "three billion, four hundred fifty-three million, four hundred fifty-one thousand, five hundred twenty-one".