2151012 has 24 divisors (see below), whose sum is σ = 5084800. Its totient is φ = 707616.

The previous prime is 2151011. The next prime is 2151013. The reversal of 2151012 is 2101512.

It is an interprime number because it is at equal distance from previous prime (2151011) and next prime (2151013).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is not an unprimeable number, because it can be changed into a prime (2151011) 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, 187 + ... + 2082.

2^2151012 is an apocalyptic number.

It is an amenable number.

2151012 is an abundant number, since it is smaller than the sum of its proper divisors (2933788).

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

2151012 is a wasteful number, since it uses less digits than its factorization.

2151012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2355 (or 2353 counting only the distinct ones).

The product of its (nonzero) digits is 20, while the sum is 12.

The square root of 2151012 is about 1466.6328783987. The cubic root of 2151012 is about 129.0865352915.

Adding to 2151012 its reverse (2101512), we get a palindrome (4252524).

The spelling of 2151012 in words is "two million, one hundred fifty-one thousand, twelve".