1167720413 has 2 divisors, whose sum is σ = 1167720414. Its totient is φ = 1167720412.

The previous prime is 1167720401. The next prime is 1167720439. The reversal of 1167720413 is 3140277611.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1084582489 + 83137924 = 32933^2 + 9118^2 .

It is a cyclic number.

It is not a de Polignac number, because 1167720413 - 2⁶ = 1167720349 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1167720413.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1167720473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 583860206 + 583860207.

It is an arithmetic number, because the mean of its divisors is an integer number (583860207).

Almost surely, 2^1167720413 is an apocalyptic number.

It is an amenable number.

1167720413 is a deficient number, since it is larger than the sum of its proper divisors (1).

1167720413 is an equidigital number, since it uses as much as digits as its factorization.

1167720413 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7056, while the sum is 32.

The square root of 1167720413 is about 34171.9243385561. The cubic root of 1167720413 is about 1053.0434490329.

The spelling of 1167720413 in words is "one billion, one hundred sixty-seven million, seven hundred twenty thousand, four hundred thirteen".