20151039 has 8 divisors (see below), whose sum is σ = 28282240. Its totient is φ = 12726936.

The previous prime is 20151031. The next prime is 20151041. The reversal of 20151039 is 93015102.

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

It is not a de Polignac number, because 20151039 - 2³ = 20151031 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

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 polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 176707 + ... + 176820.

It is an arithmetic number, because the mean of its divisors is an integer number (3535280).

Almost surely, 2^20151039 is an apocalyptic number.

20151039 is a deficient number, since it is larger than the sum of its proper divisors (8131201).

20151039 is a wasteful number, since it uses less digits than its factorization.

20151039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 353549.

The product of its (nonzero) digits is 270, while the sum is 21.

The square root of 20151039 is about 4488.9908665534. The cubic root of 20151039 is about 272.1233536160.

The spelling of 20151039 in words is "twenty million, one hundred fifty-one thousand, thirty-nine".