2145117498 has 8 divisors (see below), whose sum is σ = 4290235008. Its totient is φ = 715039164.

The previous prime is 2145117497. The next prime is 2145117523. The reversal of 2145117498 is 8947115412.

It is a sphenic number, since it is the product of 3 distinct primes.

2145117498 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (2145117497) 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, 178759786 + ... + 178759797.

It is an arithmetic number, because the mean of its divisors is an integer number (536279376).

Almost surely, 2^2145117498 is an apocalyptic number.

2145117498 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2145117498 is a wasteful number, since it uses less digits than its factorization.

2145117498 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 357519588.

The product of its digits is 80640, while the sum is 42.

The square root of 2145117498 is about 46315.4131796317. The cubic root of 2145117498 is about 1289.6851379859.

The spelling of 2145117498 in words is "two billion, one hundred forty-five million, one hundred seventeen thousand, four hundred ninety-eight".