7200190945 has 4 divisors (see below), whose sum is σ = 8640229140. Its totient is φ = 5760152752.

The previous prime is 7200190891. The next prime is 7200190967. The reversal of 7200190945 is 5490910027.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5490910027 = 67 ⋅81953881.

It can be written as a sum of positive squares in 2 ways, for example, as 1912137984 + 5288052961 = 43728^2 + 72719^2 .

It is a cyclic number.

It is not a de Polignac number, because 7200190945 - 2⁷ = 7200190817 is a prime.

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, 720019090 + ... + 720019099.

It is an arithmetic number, because the mean of its divisors is an integer number (2160057285).

Almost surely, 2^7200190945 is an apocalyptic number.

It is an amenable number.

7200190945 is a deficient number, since it is larger than the sum of its proper divisors (1440038195).

7200190945 is a wasteful number, since it uses less digits than its factorization.

7200190945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1440038194.

The product of its (nonzero) digits is 22680, while the sum is 37.

The square root of 7200190945 is about 84853.9388891288. The cubic root of 7200190945 is about 1930.9958390021.

The spelling of 7200190945 in words is "seven billion, two hundred million, one hundred ninety thousand, nine hundred forty-five".