1201443239 has 2 divisors, whose sum is σ = 1201443240. Its totient is φ = 1201443238.

The previous prime is 1201443211. The next prime is 1201443247. The reversal of 1201443239 is 9323441021.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1201443239 is a prime.

It is a super-2 number, since 2×1201443239² = 2886931713077622242, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1201443259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600721619 + 600721620.

It is an arithmetic number, because the mean of its divisors is an integer number (600721620).

Almost surely, 2^1201443239 is an apocalyptic number.

1201443239 is a deficient number, since it is larger than the sum of its proper divisors (1).

1201443239 is an equidigital number, since it uses as much as digits as its factorization.

1201443239 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 1201443239 is about 34661.8412523051. The cubic root of 1201443239 is about 1063.0844180307.

The spelling of 1201443239 in words is "one billion, two hundred one million, four hundred forty-three thousand, two hundred thirty-nine".