1172872801 has 2 divisors, whose sum is σ = 1172872802. Its totient is φ = 1172872800.

The previous prime is 1172872777. The next prime is 1172872853. The reversal of 1172872801 is 1082782711.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1065957201 + 106915600 = 32649^2 + 10340^2 .

It is an emirp because it is prime and its reverse (1082782711) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1172872801 is a prime.

It is not a weakly prime, because it can be changed into another prime (1172872301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 586436400 + 586436401.

It is an arithmetic number, because the mean of its divisors is an integer number (586436401).

Almost surely, 2^1172872801 is an apocalyptic number.

It is an amenable number.

1172872801 is a deficient number, since it is larger than the sum of its proper divisors (1).

1172872801 is an equidigital number, since it uses as much as digits as its factorization.

1172872801 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12544, while the sum is 37.

The square root of 1172872801 is about 34247.2305595650. The cubic root of 1172872801 is about 1054.5899744588.

The spelling of 1172872801 in words is "one billion, one hundred seventy-two million, eight hundred seventy-two thousand, eight hundred one".