20151036 has 36 divisors (see below), whose sum is σ = 53154192. Its totient is φ = 6424704.

The previous prime is 20151031. The next prime is 20151041. The reversal of 20151036 is 63015102.

It is an interprime number because it is at equal distance from previous prime (20151031) and next prime (20151041).

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

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 11 ways as a sum of consecutive naturals, for example, 11341 + ... + 12996.

Almost surely, 2^20151036 is an apocalyptic number.

It is an amenable number.

20151036 is an abundant number, since it is smaller than the sum of its proper divisors (33003156).

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

20151036 is a wasteful number, since it uses less digits than its factorization.

20151036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24370 (or 24365 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 20151036 is about 4488.9905324026. The cubic root of 20151036 is about 272.1233401118.

Adding to 20151036 its reverse (63015102), we get a palindrome (83166138).

The spelling of 20151036 in words is "twenty million, one hundred fifty-one thousand, thirty-six".