1641061452 has 12 divisors (see below), whose sum is σ = 3829143416. Its totient is φ = 547020480.

The previous prime is 1641061451. The next prime is 1641061489. The reversal of 1641061452 is 2541601461.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (1641061451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68377549 + ... + 68377572.

Almost surely, 2^1641061452 is an apocalyptic number.

1641061452 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1641061452 is an abundant number, since it is smaller than the sum of its proper divisors (2188081964).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1641061452 is a wasteful number, since it uses less digits than its factorization.

1641061452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136755128 (or 136755126 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 1641061452 is about 40510.0166872343. The cubic root of 1641061452 is about 1179.5280723191.

The spelling of 1641061452 in words is "one billion, six hundred forty-one million, sixty-one thousand, four hundred fifty-two".