20159452 has 6 divisors (see below), whose sum is σ = 35279048. Its totient is φ = 10079724.

The previous prime is 20159449. The next prime is 20159497. The reversal of 20159452 is 25495102.

It is a self number, because there is not a number n which added to its sum of digits gives 20159452.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2519928 + ... + 2519935.

Almost surely, 2^20159452 is an apocalyptic number.

It is an amenable number.

20159452 is a deficient number, since it is larger than the sum of its proper divisors (15119596).

20159452 is a wasteful number, since it uses less digits than its factorization.

20159452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5039867 (or 5039865 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 20159452 is about 4489.9278390638. The cubic root of 20159452 is about 272.1612185824.

The spelling of 20159452 in words is "twenty million, one hundred fifty-nine thousand, four hundred fifty-two".