1161356434 has 16 divisors (see below), whose sum is σ = 2077458048. Its totient is φ = 476083872.

The previous prime is 1161356431. The next prime is 1161356467. The reversal of 1161356434 is 4346531611.

It is a self number, because there is not a number n which added to its sum of digits gives 1161356434.

It is not an unprimeable number, because it can be changed into a prime (1161356431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1803027 + ... + 1803670.

It is an arithmetic number, because the mean of its divisors is an integer number (129841128).

Almost surely, 2^1161356434 is an apocalyptic number.

1161356434 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1161356434 is a deficient number, since it is larger than the sum of its proper divisors (916101614).

1161356434 is a wasteful number, since it uses less digits than its factorization.

1161356434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3606729.

The product of its digits is 25920, while the sum is 34.

The square root of 1161356434 is about 34078.6800507297. The cubic root of 1161356434 is about 1051.1269635438.

The spelling of 1161356434 in words is "one billion, one hundred sixty-one million, three hundred fifty-six thousand, four hundred thirty-four".