1161896530 has 8 divisors (see below), whose sum is σ = 2091413772. Its totient is φ = 464758608.

The previous prime is 1161896521. The next prime is 1161896539. The reversal of 1161896530 is 356981611.

It is an interprime number because it is at equal distance from previous prime (1161896521) and next prime (1161896539).

It can be written as a sum of positive squares in 2 ways, for example, as 1126743489 + 35153041 = 33567^2 + 5929^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (1161896539) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58094817 + ... + 58094836.

Almost surely, 2^1161896530 is an apocalyptic number.

1161896530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1161896530 is a deficient number, since it is larger than the sum of its proper divisors (929517242).

1161896530 is a wasteful number, since it uses less digits than its factorization.

1161896530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116189660.

The product of its (nonzero) digits is 38880, while the sum is 40.

The square root of 1161896530 is about 34086.6033802138. The cubic root of 1161896530 is about 1051.2898826583.

The spelling of 1161896530 in words is "one billion, one hundred sixty-one million, eight hundred ninety-six thousand, five hundred thirty".