1715982249 has 4 divisors (see below), whose sum is σ = 2287976336. Its totient is φ = 1143988164.

The previous prime is 1715982199. The next prime is 1715982251. The reversal of 1715982249 is 9422895171.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1715982249 - 2²⁷ = 1581764521 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1715982198 and 1715982207.

It is not an unprimeable number, because it can be changed into a prime (1715982049) 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, 285997039 + ... + 285997044.

It is an arithmetic number, because the mean of its divisors is an integer number (571994084).

Almost surely, 2^1715982249 is an apocalyptic number.

It is an amenable number.

1715982249 is a deficient number, since it is larger than the sum of its proper divisors (571994087).

1715982249 is an equidigital number, since it uses as much as digits as its factorization.

1715982249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 571994086.

The product of its digits is 362880, while the sum is 48.

The square root of 1715982249 is about 41424.4160972729. The cubic root of 1715982249 is about 1197.2116390823.

The spelling of 1715982249 in words is "one billion, seven hundred fifteen million, nine hundred eighty-two thousand, two hundred forty-nine".