1098134258 has 16 divisors (see below), whose sum is σ = 1815164736. Its totient is φ = 495043920.

The previous prime is 1098134251. The next prime is 1098134263. The reversal of 1098134258 is 8524318901.

It is not an unprimeable number, because it can be changed into a prime (1098134251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 489998 + ... + 492233.

It is an arithmetic number, because the mean of its divisors is an integer number (113447796).

Almost surely, 2^1098134258 is an apocalyptic number.

1098134258 is a deficient number, since it is larger than the sum of its proper divisors (717030478).

1098134258 is a wasteful number, since it uses less digits than its factorization.

1098134258 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 982289.

The product of its (nonzero) digits is 69120, while the sum is 41.

The square root of 1098134258 is about 33138.1088476696. The cubic root of 1098134258 is about 1031.6961583984.

The spelling of 1098134258 in words is "one billion, ninety-eight million, one hundred thirty-four thousand, two hundred fifty-eight".