1190115439 has 4 divisors (see below), whose sum is σ = 1207878424. Its totient is φ = 1172352456.

The previous prime is 1190115401. The next prime is 1190115463. The reversal of 1190115439 is 9345110911.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1190115439 - 2⁹ = 1190114927 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1190115139) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8881392 + ... + 8881525.

It is an arithmetic number, because the mean of its divisors is an integer number (301969606).

Almost surely, 2^1190115439 is an apocalyptic number.

1190115439 is a deficient number, since it is larger than the sum of its proper divisors (17762985).

1190115439 is an equidigital number, since it uses as much as digits as its factorization.

1190115439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17762984.

The product of its (nonzero) digits is 4860, while the sum is 34.

The square root of 1190115439 is about 34498.0497854589. The cubic root of 1190115439 is about 1059.7327672733.

The spelling of 1190115439 in words is "one billion, one hundred ninety million, one hundred fifteen thousand, four hundred thirty-nine".