1189413013 has 4 divisors (see below), whose sum is σ = 1192471020. Its totient is φ = 1186355008.

The previous prime is 1189412971. The next prime is 1189413031. The reversal of 1189413013 is 3103149811.

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

It can be written as a sum of positive squares in 2 ways, for example, as 158810404 + 1030602609 = 12602^2 + 32103^2 .

It is a cyclic number.

It is not a de Polignac number, because 1189413013 - 2¹⁷ = 1189281941 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 (1189413713) 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, 1528420 + ... + 1529197.

It is an arithmetic number, because the mean of its divisors is an integer number (298117755).

Almost surely, 2^1189413013 is an apocalyptic number.

It is an amenable number.

1189413013 is a deficient number, since it is larger than the sum of its proper divisors (3058007).

1189413013 is an equidigital number, since it uses as much as digits as its factorization.

1189413013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3058006.

The product of its (nonzero) digits is 2592, while the sum is 31.

The square root of 1189413013 is about 34487.8676203676. The cubic root of 1189413013 is about 1059.5242355847.

The spelling of 1189413013 in words is "one billion, one hundred eighty-nine million, four hundred thirteen thousand, thirteen".