671414545 has 8 divisors (see below), whose sum is σ = 806946624. Its totient is φ = 536298864.

The previous prime is 671414539. The next prime is 671414573. The reversal of 671414545 is 545414176.

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

It is a cyclic number.

It is not a de Polignac number, because 671414545 - 2⁷ = 671414417 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 100539 + ... + 107008.

It is an arithmetic number, because the mean of its divisors is an integer number (100868328).

Almost surely, 2^671414545 is an apocalyptic number.

It is an amenable number.

671414545 is a deficient number, since it is larger than the sum of its proper divisors (135532079).

671414545 is a wasteful number, since it uses less digits than its factorization.

671414545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208199.

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

The square root of 671414545 is about 25911.6681246114. The cubic root of 671414545 is about 875.6493878646.

The spelling of 671414545 in words is "six hundred seventy-one million, four hundred fourteen thousand, five hundred forty-five".