716251145 has 4 divisors (see below), whose sum is σ = 859501380. Its totient is φ = 573000912.

The previous prime is 716251141. The next prime is 716251147. The reversal of 716251145 is 541152617.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 541152617 = 6679 ⋅81023.

It can be written as a sum of positive squares in 2 ways, for example, as 189640441 + 526610704 = 13771^2 + 22948^2 .

It is a cyclic number.

It is not a de Polignac number, because 716251145 - 2² = 716251141 is a prime.

It is a super-2 number, since 2×716251145² = 1026031405427622050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (716251141) 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, 71625110 + ... + 71625119.

It is an arithmetic number, because the mean of its divisors is an integer number (214875345).

Almost surely, 2^716251145 is an apocalyptic number.

It is an amenable number.

716251145 is a deficient number, since it is larger than the sum of its proper divisors (143250235).

716251145 is a wasteful number, since it uses less digits than its factorization.

716251145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143250234.

The product of its digits is 8400, while the sum is 32.

The square root of 716251145 is about 26762.8687737320. The cubic root of 716251145 is about 894.7226734571.

The spelling of 716251145 in words is "seven hundred sixteen million, two hundred fifty-one thousand, one hundred forty-five".