1172340271 has 4 divisors (see below), whose sum is σ = 1172416792. Its totient is φ = 1172263752.

The previous prime is 1172340233. The next prime is 1172340277. The reversal of 1172340271 is 1720432711.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 1172340271 - 2¹³ = 1172332079 is a prime.

It is a super-2 number, since 2×1172340271² = 2748763422016706882, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1172340277) 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 in 3 ways as a sum of consecutive naturals, for example, 6480 + ... + 48853.

It is an arithmetic number, because the mean of its divisors is an integer number (293104198).

Almost surely, 2^1172340271 is an apocalyptic number.

1172340271 is a deficient number, since it is larger than the sum of its proper divisors (76521).

1172340271 is an equidigital number, since it uses as much as digits as its factorization.

1172340271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76520.

The product of its (nonzero) digits is 2352, while the sum is 28.

The square root of 1172340271 is about 34239.4548876001. The cubic root of 1172340271 is about 1054.4303419689.

Adding to 1172340271 its reverse (1720432711), we get a palindrome (2892772982).

The spelling of 1172340271 in words is "one billion, one hundred seventy-two million, three hundred forty thousand, two hundred seventy-one".