1161563039 has 16 divisors (see below), whose sum is σ = 1430495808. Its totient is φ = 918473472.

The previous prime is 1161563027. The next prime is 1161563057. The reversal of 1161563039 is 9303651611.

It is not a de Polignac number, because 1161563039 - 2¹² = 1161558943 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1161563059) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 206249 + ... + 211805.

It is an arithmetic number, because the mean of its divisors is an integer number (89405988).

Almost surely, 2^1161563039 is an apocalyptic number.

1161563039 is a deficient number, since it is larger than the sum of its proper divisors (268932769).

1161563039 is a wasteful number, since it uses less digits than its factorization.

1161563039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7874.

The product of its (nonzero) digits is 14580, while the sum is 35.

The square root of 1161563039 is about 34081.7112099730. The cubic root of 1161563039 is about 1051.1892915835.

The spelling of 1161563039 in words is "one billion, one hundred sixty-one million, five hundred sixty-three thousand, thirty-nine".