1155234898 has 8 divisors (see below), whose sum is σ = 1834784892. Its totient is φ = 543639936.

The previous prime is 1155234887. The next prime is 1155234937. The reversal of 1155234898 is 8984325511.

It can be written as a sum of positive squares in 2 ways, for example, as 852231249 + 303003649 = 29193^2 + 17407^2 .

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

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, 16988715 + ... + 16988782.

Almost surely, 2^1155234898 is an apocalyptic number.

1155234898 is a deficient number, since it is larger than the sum of its proper divisors (679549994).

1155234898 is a wasteful number, since it uses less digits than its factorization.

1155234898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33977516.

The product of its digits is 345600, while the sum is 46.

The square root of 1155234898 is about 33988.7466376741. The cubic root of 1155234898 is about 1049.2768711095.

The spelling of 1155234898 in words is "one billion, one hundred fifty-five million, two hundred thirty-four thousand, eight hundred ninety-eight".