1149898 has 4 divisors (see below), whose sum is σ = 1724850. Its totient is φ = 574948.

The previous prime is 1149887. The next prime is 1149901. The reversal of 1149898 is 8989411.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1075369 + 74529 = 1037^2 + 273^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 1149898.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 287473 + ... + 287476.

2^1149898 is an apocalyptic number.

1149898 is a deficient number, since it is larger than the sum of its proper divisors (574952).

1149898 is an equidigital number, since it uses as much as digits as its factorization.

1149898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 574951.

The product of its digits is 20736, while the sum is 40.

The square root of 1149898 is about 1072.3329706766. The cubic root of 1149898 is about 104.7658577086.

The spelling of 1149898 in words is "one million, one hundred forty-nine thousand, eight hundred ninety-eight".