2012151531 has 8 divisors (see below), whose sum is σ = 2889243280. Its totient is φ = 1238247072.

The previous prime is 2012151529. The next prime is 2012151539. The reversal of 2012151531 is 1351512102.

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

It is not a de Polignac number, because 2012151531 - 2¹ = 2012151529 is a prime.

It is a super-2 number, since 2×2012151531² = 8097507567411287922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2012151498 and 2012151507.

It is not an unprimeable number, because it can be changed into a prime (2012151539) 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, 25796776 + ... + 25796853.

It is an arithmetic number, because the mean of its divisors is an integer number (361155410).

Almost surely, 2^2012151531 is an apocalyptic number.

2012151531 is a deficient number, since it is larger than the sum of its proper divisors (877091749).

2012151531 is a wasteful number, since it uses less digits than its factorization.

2012151531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51593645.

The product of its (nonzero) digits is 300, while the sum is 21.

The square root of 2012151531 is about 44857.0120605463. The cubic root of 2012151531 is about 1262.4675611180.

Adding to 2012151531 its reverse (1351512102), we get a palindrome (3363663633).

The spelling of 2012151531 in words is "two billion, twelve million, one hundred fifty-one thousand, five hundred thirty-one".