1098495313 has 4 divisors (see below), whose sum is σ = 1113543268. Its totient is φ = 1083447360.

The previous prime is 1098495311. The next prime is 1098495319. The reversal of 1098495313 is 3135948901.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3135948901 = 29 ⋅108136169.

It can be written as a sum of positive squares in 2 ways, for example, as 629859409 + 468635904 = 25097^2 + 21648^2 .

It is a cyclic number.

It is not a de Polignac number, because 1098495313 - 2¹ = 1098495311 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1098495313.

It is not an unprimeable number, because it can be changed into a prime (1098495311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7523868 + ... + 7524013.

It is an arithmetic number, because the mean of its divisors is an integer number (278385817).

Almost surely, 2^1098495313 is an apocalyptic number.

It is an amenable number.

1098495313 is a deficient number, since it is larger than the sum of its proper divisors (15047955).

1098495313 is an equidigital number, since it uses as much as digits as its factorization.

1098495313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15047954.

The product of its (nonzero) digits is 116640, while the sum is 43.

The square root of 1098495313 is about 33143.5561308680. The cubic root of 1098495313 is about 1031.8092162923.

The spelling of 1098495313 in words is "one billion, ninety-eight million, four hundred ninety-five thousand, three hundred thirteen".