1161243698 has 8 divisors (see below), whose sum is σ = 1761437340. Its totient is φ = 574097920.

The previous prime is 1161243689. The next prime is 1161243703. The reversal of 1161243698 is 8963421611.

It can be written as a sum of positive squares in 2 ways, for example, as 877759129 + 283484569 = 29627^2 + 16837^2 .

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

It is a super-2 number, since 2×1161243698² = 2696973852289430408, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3261743 + ... + 3262098.

Almost surely, 2^1161243698 is an apocalyptic number.

1161243698 is a deficient number, since it is larger than the sum of its proper divisors (600193642).

1161243698 is an equidigital number, since it uses as much as digits as its factorization.

1161243698 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6523932.

The product of its digits is 62208, while the sum is 41.

The square root of 1161243698 is about 34077.0259559135. The cubic root of 1161243698 is about 1051.0929505338.

The spelling of 1161243698 in words is "one billion, one hundred sixty-one million, two hundred forty-three thousand, six hundred ninety-eight".