1199420539 has 2 divisors, whose sum is σ = 1199420540. Its totient is φ = 1199420538.

The previous prime is 1199420531. The next prime is 1199420549. The reversal of 1199420539 is 9350249911.

It is a weak prime.

It is an emirp because it is prime and its reverse (9350249911) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1199420539 - 2³ = 1199420531 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1199420495 and 1199420504.

It is not a weakly prime, because it can be changed into another prime (1199420531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 599710269 + 599710270.

It is an arithmetic number, because the mean of its divisors is an integer number (599710270).

Almost surely, 2^1199420539 is an apocalyptic number.

1199420539 is a deficient number, since it is larger than the sum of its proper divisors (1).

1199420539 is an equidigital number, since it uses as much as digits as its factorization.

1199420539 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 87480, while the sum is 43.

The square root of 1199420539 is about 34632.6513423388. The cubic root of 1199420539 is about 1062.4874946440.

The spelling of 1199420539 in words is "one billion, one hundred ninety-nine million, four hundred twenty thousand, five hundred thirty-nine".