1165436434 has 16 divisors (see below), whose sum is σ = 1806855768. Its totient is φ = 563352192.

The previous prime is 1165436401. The next prime is 1165436491. The reversal of 1165436434 is 4346345611.

It can be written as a sum of positive squares in 4 ways, for example, as 846635409 + 318801025 = 29097^2 + 17855^2 .

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a junction number, because it is equal to n+sod(n) for n = 1165436393 and 1165436402.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38539 + ... + 61774.

Almost surely, 2^1165436434 is an apocalyptic number.

1165436434 is a deficient number, since it is larger than the sum of its proper divisors (641419334).

1165436434 is a wasteful number, since it uses less digits than its factorization.

1165436434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100509.

The product of its digits is 103680, while the sum is 37.

The square root of 1165436434 is about 34138.4890409637. The cubic root of 1165436434 is about 1052.3564412838.

The spelling of 1165436434 in words is "one billion, one hundred sixty-five million, four hundred thirty-six thousand, four hundred thirty-four".