2151051 has 12 divisors (see below), whose sum is σ = 3336552. Its totient is φ = 1229088.

The previous prime is 2151031. The next prime is 2151073. The reversal of 2151051 is 1501512.

It is not a de Polignac number, because 2151051 - 2⁷ = 2150923 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2151051.

It is not an unprimeable number, because it can be changed into a prime (2151001) 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, 7170 + ... + 7463.

It is an arithmetic number, because the mean of its divisors is an integer number (278046).

2^2151051 is an apocalyptic number.

2151051 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2151051 is a deficient number, since it is larger than the sum of its proper divisors (1185501).

2151051 is a wasteful number, since it uses less digits than its factorization.

2151051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14650 (or 14643 counting only the distinct ones).

The product of its (nonzero) digits is 50, while the sum is 15.

The square root of 2151051 is about 1466.6461740993. The cubic root of 2151051 is about 129.0873154428.

Adding to 2151051 its reverse (1501512), we get a palindrome (3652563).

The spelling of 2151051 in words is "two million, one hundred fifty-one thousand, fifty-one".