1172242549 has 2 divisors, whose sum is σ = 1172242550. Its totient is φ = 1172242548.

The previous prime is 1172242543. The next prime is 1172242559. The reversal of 1172242549 is 9452422711.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1103435524 + 68807025 = 33218^2 + 8295^2 .

It is a cyclic number.

It is not a de Polignac number, because 1172242549 - 2⁵ = 1172242517 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1172242543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 586121274 + 586121275.

It is an arithmetic number, because the mean of its divisors is an integer number (586121275).

Almost surely, 2^1172242549 is an apocalyptic number.

It is an amenable number.

1172242549 is a deficient number, since it is larger than the sum of its proper divisors (1).

1172242549 is an equidigital number, since it uses as much as digits as its factorization.

1172242549 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 40320, while the sum is 37.

The square root of 1172242549 is about 34238.0278199548. The cubic root of 1172242549 is about 1054.4010433351.

The spelling of 1172242549 in words is "one billion, one hundred seventy-two million, two hundred forty-two thousand, five hundred forty-nine".