7172380231 has 2 divisors, whose sum is σ = 7172380232. Its totient is φ = 7172380230.

The previous prime is 7172380219. The next prime is 7172380249. The reversal of 7172380231 is 1320832717.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 7172380231 - 2⁵ = 7172380199 is a prime.

It is a super-2 number, since 2×7172380231² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7172380211) by changing a digit.

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 as a sum of consecutive naturals, namely, 3586190115 + 3586190116.

It is an arithmetic number, because the mean of its divisors is an integer number (3586190116).

Almost surely, 2^7172380231 is an apocalyptic number.

7172380231 is a deficient number, since it is larger than the sum of its proper divisors (1).

7172380231 is an equidigital number, since it uses as much as digits as its factorization.

7172380231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14112, while the sum is 34.

The square root of 7172380231 is about 84689.9063112010. The cubic root of 7172380231 is about 1928.5064761541.

The spelling of 7172380231 in words is "seven billion, one hundred seventy-two million, three hundred eighty thousand, two hundred thirty-one".