1145259298 has 64 divisors (see below), whose sum is σ = 1934707680. Its totient is φ = 506068992.

The previous prime is 1145259277. The next prime is 1145259299. The reversal of 1145259298 is 8929525411.

It is a happy number.

It can be written as a sum of positive squares in 16 ways, for example, as 345104929 + 800154369 = 18577^2 + 28287^2 .

It is not an unprimeable number, because it can be changed into a prime (1145259299) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5933890 + ... + 5934082.

Almost surely, 2^1145259298 is an apocalyptic number.

1145259298 is a deficient number, since it is larger than the sum of its proper divisors (789448382).

1145259298 is a wasteful number, since it uses less digits than its factorization.

1145259298 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 391.

The product of its digits is 259200, while the sum is 46.

The square root of 1145259298 is about 33841.6798932913. The cubic root of 1145259298 is about 1046.2479228605.

The spelling of 1145259298 in words is "one billion, one hundred forty-five million, two hundred fifty-nine thousand, two hundred ninety-eight".