715191 has 4 divisors (see below), whose sum is σ = 953592. Its totient is φ = 476792.

The previous prime is 715189. The next prime is 715193. The reversal of 715191 is 191517.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 191517 = 3 ⋅63839.

It is an interprime number because it is at equal distance from previous prime (715189) and next prime (715193).

It is a cyclic number.

It is not a de Polignac number, because 715191 - 2¹ = 715189 is a prime.

It is a super-2 number, since 2×715191² = 1022996332962, which contains 22 as substring.

It is a D-number.

715191 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (715193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 119196 + ... + 119201.

It is an arithmetic number, because the mean of its divisors is an integer number (238398).

2⁷¹⁵¹⁹¹ is an apocalyptic number.

715191 is a deficient number, since it is larger than the sum of its proper divisors (238401).

715191 is a wasteful number, since it uses less digits than its factorization.

715191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238400.

The product of its digits is 315, while the sum is 24.

The square root of 715191 is about 845.6896593905. The cubic root of 715191 is about 89.4281020113.

The spelling of 715191 in words is "seven hundred fifteen thousand, one hundred ninety-one".