1136065421 has 2 divisors, whose sum is σ = 1136065422. Its totient is φ = 1136065420.

The previous prime is 1136065417. The next prime is 1136065451. The reversal of 1136065421 is 1245606311.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 832957321 + 303108100 = 28861^2 + 17410^2 .

It is a cyclic number.

It is not a de Polignac number, because 1136065421 - 2² = 1136065417 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1136065451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 568032710 + 568032711.

It is an arithmetic number, because the mean of its divisors is an integer number (568032711).

Almost surely, 2^1136065421 is an apocalyptic number.

It is an amenable number.

1136065421 is a deficient number, since it is larger than the sum of its proper divisors (1).

1136065421 is an equidigital number, since it uses as much as digits as its factorization.

1136065421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 1136065421 is about 33705.5695842690. The cubic root of 1136065421 is about 1043.4407186903.

The spelling of 1136065421 in words is "one billion, one hundred thirty-six million, sixty-five thousand, four hundred twenty-one".