1161520214 has 16 divisors (see below), whose sum is σ = 1840312320. Its totient is φ = 548954280.

The previous prime is 1161520207. The next prime is 1161520219. The reversal of 1161520214 is 4120251611.

It is a self number, because there is not a number n which added to its sum of digits gives 1161520214.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1161520219) 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, 215174 + ... + 220505.

It is an arithmetic number, because the mean of its divisors is an integer number (115019520).

Almost surely, 2^1161520214 is an apocalyptic number.

1161520214 is a deficient number, since it is larger than the sum of its proper divisors (678792106).

1161520214 is a wasteful number, since it uses less digits than its factorization.

1161520214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 435755.

The product of its (nonzero) digits is 480, while the sum is 23.

The square root of 1161520214 is about 34081.0829346721. The cubic root of 1161520214 is about 1051.1763728601.

Adding to 1161520214 its reverse (4120251611), we get a palindrome (5281771825).

The spelling of 1161520214 in words is "one billion, one hundred sixty-one million, five hundred twenty thousand, two hundred fourteen".