20151038 has 8 divisors (see below), whose sum is σ = 30412488. Its totient is φ = 10013544.

The previous prime is 20151031. The next prime is 20151041. The reversal of 20151038 is 83015102.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20151031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30581 + ... + 31232.

It is an arithmetic number, because the mean of its divisors is an integer number (3801561).

Almost surely, 2^20151038 is an apocalyptic number.

20151038 is a deficient number, since it is larger than the sum of its proper divisors (10261450).

20151038 is a wasteful number, since it uses less digits than its factorization.

20151038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61978.

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 20151038 is about 4488.9907551698. The cubic root of 20151038 is about 272.1233491146.

The spelling of 20151038 in words is "twenty million, one hundred fifty-one thousand, thirty-eight".