1245208798 has 4 divisors (see below), whose sum is σ = 1867813200. Its totient is φ = 622604398.

The previous prime is 1245208793. The next prime is 1245208813. The reversal of 1245208798 is 8978025421.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1245208793) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 311302198 + ... + 311302201.

It is an arithmetic number, because the mean of its divisors is an integer number (466953300).

Almost surely, 2^1245208798 is an apocalyptic number.

1245208798 is a deficient number, since it is larger than the sum of its proper divisors (622604402).

1245208798 is an equidigital number, since it uses as much as digits as its factorization.

1245208798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 622604401.

The product of its (nonzero) digits is 322560, while the sum is 46.

The square root of 1245208798 is about 35287.5161778213. The cubic root of 1245208798 is about 1075.8392719068.

The spelling of 1245208798 in words is "one billion, two hundred forty-five million, two hundred eight thousand, seven hundred ninety-eight".