1219055701 has 2 divisors, whose sum is σ = 1219055702. Its totient is φ = 1219055700.

The previous prime is 1219055657. The next prime is 1219055731. The reversal of 1219055701 is 1075509121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1115626801 + 103428900 = 33401^2 + 10170^2 .

It is a cyclic number.

It is not a de Polignac number, because 1219055701 - 2²³ = 1210667093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1219055731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 609527850 + 609527851.

It is an arithmetic number, because the mean of its divisors is an integer number (609527851).

Almost surely, 2^1219055701 is an apocalyptic number.

It is an amenable number.

1219055701 is a deficient number, since it is larger than the sum of its proper divisors (1).

1219055701 is an equidigital number, since it uses as much as digits as its factorization.

1219055701 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3150, while the sum is 31.

The square root of 1219055701 is about 34914.9781755624. The cubic root of 1219055701 is about 1068.2539727724.

The spelling of 1219055701 in words is "one billion, two hundred nineteen million, fifty-five thousand, seven hundred one".