1161613459 has 8 divisors (see below), whose sum is σ = 1212464160. Its totient is φ = 1110791616.

The previous prime is 1161613441. The next prime is 1161613471. The reversal of 1161613459 is 9543161611.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1161613459 - 2⁷ = 1161613331 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1161613499) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 134479 + ... + 142855.

It is an arithmetic number, because the mean of its divisors is an integer number (151558020).

Almost surely, 2^1161613459 is an apocalyptic number.

1161613459 is a deficient number, since it is larger than the sum of its proper divisors (50850701).

1161613459 is an equidigital number, since it uses as much as digits as its factorization.

1161613459 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14429.

The product of its digits is 19440, while the sum is 37.

The square root of 1161613459 is about 34082.4508948520. The cubic root of 1161613459 is about 1051.2045010313.

The spelling of 1161613459 in words is "one billion, one hundred sixty-one million, six hundred thirteen thousand, four hundred fifty-nine".