1172279 has 2 divisors, whose sum is σ = 1172280. Its totient is φ = 1172278.

The previous prime is 1172273. The next prime is 1172317. The reversal of 1172279 is 9722711.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1172279 - 2⁸ = 1172023 is a prime.

It is equal to p₉₀₉₂₉ and since 1172279 and 90929 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1172273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 586139 + 586140.

It is an arithmetic number, because the mean of its divisors is an integer number (586140).

2^1172279 is an apocalyptic number.

1172279 is a deficient number, since it is larger than the sum of its proper divisors (1).

1172279 is an equidigital number, since it uses as much as digits as its factorization.

1172279 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1764, while the sum is 29.

The square root of 1172279 is about 1082.7183382579. The cubic root of 1172279 is about 105.4411972124.

The spelling of 1172279 in words is "one million, one hundred seventy-two thousand, two hundred seventy-nine".