671052245 has 4 divisors (see below), whose sum is σ = 805262700. Its totient is φ = 536841792.

The previous prime is 671052233. The next prime is 671052293. The reversal of 671052245 is 542250176.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 427910596 + 243141649 = 20686^2 + 15593^2 .

It is a cyclic number.

It is not a de Polignac number, because 671052245 - 2¹⁰ = 671051221 is a prime.

It is a super-2 number, since 2×671052245² = 900622231039080050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67105220 + ... + 67105229.

It is an arithmetic number, because the mean of its divisors is an integer number (201315675).

Almost surely, 2^671052245 is an apocalyptic number.

It is an amenable number.

671052245 is a deficient number, since it is larger than the sum of its proper divisors (134210455).

671052245 is a wasteful number, since it uses less digits than its factorization.

671052245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134210454.

The product of its (nonzero) digits is 16800, while the sum is 32.

The square root of 671052245 is about 25904.6761222757. The cubic root of 671052245 is about 875.4918573416.

The spelling of 671052245 in words is "six hundred seventy-one million, fifty-two thousand, two hundred forty-five".