20145098 has 8 divisors (see below), whose sum is σ = 30420900. Its totient is φ = 10004800.

The previous prime is 20145089. The next prime is 20145107. The reversal of 20145098 is 89054102.

It is an interprime number because it is at equal distance from previous prime (20145089) and next prime (20145107).

It can be written as a sum of positive squares in 2 ways, for example, as 19562929 + 582169 = 4423^2 + 763^2 .

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

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 20145098.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33503 + ... + 34098.

Almost surely, 2^20145098 is an apocalyptic number.

20145098 is a deficient number, since it is larger than the sum of its proper divisors (10275802).

20145098 is a wasteful number, since it uses less digits than its factorization.

20145098 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67752.

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 20145098 is about 4488.3290877564. The cubic root of 20145098 is about 272.0966082002.

The spelling of 20145098 in words is "twenty million, one hundred forty-five thousand, ninety-eight".