1136776405 has 4 divisors (see below), whose sum is σ = 1364131692. Its totient is φ = 909421120.

The previous prime is 1136776387. The next prime is 1136776427. The reversal of 1136776405 is 5046776311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5046776311 = 23 ⋅219425057.

It can be written as a sum of positive squares in 2 ways, for example, as 842276484 + 294499921 = 29022^2 + 17161^2 .

It is not a de Polignac number, because 1136776405 - 2²⁷ = 1002558677 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 113677636 + ... + 113677645.

It is an arithmetic number, because the mean of its divisors is an integer number (341032923).

Almost surely, 2^1136776405 is an apocalyptic number.

It is an amenable number.

1136776405 is a deficient number, since it is larger than the sum of its proper divisors (227355287).

1136776405 is an equidigital number, since it uses as much as digits as its factorization.

1136776405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227355286.

The product of its (nonzero) digits is 105840, while the sum is 40.

The square root of 1136776405 is about 33716.1149155712. The cubic root of 1136776405 is about 1043.6583455201.

The spelling of 1136776405 in words is "one billion, one hundred thirty-six million, seven hundred seventy-six thousand, four hundred five".