1136469221 has 2 divisors, whose sum is σ = 1136469222. Its totient is φ = 1136469220.

The previous prime is 1136469179. The next prime is 1136469247. The reversal of 1136469221 is 1229646311.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 811965025 + 324504196 = 28495^2 + 18014^2 .

It is an emirp because it is prime and its reverse (1229646311) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1136469221 - 2⁶ = 1136469157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1136469281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 568234610 + 568234611.

It is an arithmetic number, because the mean of its divisors is an integer number (568234611).

Almost surely, 2^1136469221 is an apocalyptic number.

It is an amenable number.

1136469221 is a deficient number, since it is larger than the sum of its proper divisors (1).

1136469221 is an equidigital number, since it uses as much as digits as its factorization.

1136469221 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15552, while the sum is 35.

The square root of 1136469221 is about 33711.5591600270. The cubic root of 1136469221 is about 1043.5643299554.

The spelling of 1136469221 in words is "one billion, one hundred thirty-six million, four hundred sixty-nine thousand, two hundred twenty-one".