7212383245 has 4 divisors (see below), whose sum is σ = 8654859900. Its totient is φ = 5769906592.

The previous prime is 7212383239. The next prime is 7212383287. The reversal of 7212383245 is 5423832127.

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 4088579364 + 3123803881 = 63942^2 + 55891^2 .

It is a cyclic number.

It is not a de Polignac number, because 7212383245 - 2⁷ = 7212383117 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 721238320 + ... + 721238329.

It is an arithmetic number, because the mean of its divisors is an integer number (2163714975).

Almost surely, 2^7212383245 is an apocalyptic number.

It is an amenable number.

7212383245 is a deficient number, since it is larger than the sum of its proper divisors (1442476655).

7212383245 is a wasteful number, since it uses less digits than its factorization.

7212383245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1442476654.

The product of its digits is 80640, while the sum is 37.

The square root of 7212383245 is about 84925.7513655311. The cubic root of 7212383245 is about 1932.0851621597.

The spelling of 7212383245 in words is "seven billion, two hundred twelve million, three hundred eighty-three thousand, two hundred forty-five".