1161144514 has 32 divisors (see below), whose sum is σ = 1832407920. Its totient is φ = 551104512.

The previous prime is 1161144461. The next prime is 1161144527. The reversal of 1161144514 is 4154411611.

It can be written as a sum of positive squares in 8 ways, for example, as 841986289 + 319158225 = 29017^2 + 17865^2 .

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 972702 + ... + 973894.

Almost surely, 2^1161144514 is an apocalyptic number.

1161144514 is a deficient number, since it is larger than the sum of its proper divisors (671263406).

1161144514 is a wasteful number, since it uses less digits than its factorization.

1161144514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1494.

The product of its digits is 1920, while the sum is 28.

The square root of 1161144514 is about 34075.5706335198. The cubic root of 1161144514 is about 1051.0630244091.

The spelling of 1161144514 in words is "one billion, one hundred sixty-one million, one hundred forty-four thousand, five hundred fourteen".