1121664007 has 2 divisors, whose sum is σ = 1121664008. Its totient is φ = 1121664006.

The previous prime is 1121663981. The next prime is 1121664079. The reversal of 1121664007 is 7004661211.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1121664007 - 2²³ = 1113275399 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1121664307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560832003 + 560832004.

It is an arithmetic number, because the mean of its divisors is an integer number (560832004).

Almost surely, 2^1121664007 is an apocalyptic number.

1121664007 is a deficient number, since it is larger than the sum of its proper divisors (1).

1121664007 is an equidigital number, since it uses as much as digits as its factorization.

1121664007 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 1121664007 is about 33491.2526938005. The cubic root of 1121664007 is about 1039.0128722163.

The spelling of 1121664007 in words is "one billion, one hundred twenty-one million, six hundred sixty-four thousand, seven".