1672545241 has 4 divisors (see below), whose sum is σ = 1672627684. Its totient is φ = 1672462800.

The previous prime is 1672545223. The next prime is 1672545271. The reversal of 1672545241 is 1425452761.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 762919641 + 909625600 = 27621^2 + 30160^2 .

It is a cyclic number.

It is not a de Polignac number, because 1672545241 - 2⁹ = 1672544729 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1672545241.

It is not an unprimeable number, because it can be changed into a prime (1672545271) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12871 + ... + 59251.

It is an arithmetic number, because the mean of its divisors is an integer number (418156921).

Almost surely, 2^1672545241 is an apocalyptic number.

It is an amenable number.

1672545241 is a deficient number, since it is larger than the sum of its proper divisors (82443).

1672545241 is an equidigital number, since it uses as much as digits as its factorization.

1672545241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82442.

The product of its digits is 67200, while the sum is 37.

The square root of 1672545241 is about 40896.7632093299. The cubic root of 1672545241 is about 1187.0234299087.

The spelling of 1672545241 in words is "one billion, six hundred seventy-two million, five hundred forty-five thousand, two hundred forty-one".