2151303 has 32 divisors (see below), whose sum is σ = 3655680. Its totient is φ = 1092960.

The previous prime is 2151301. The next prime is 2151319. The reversal of 2151303 is 3031512.

It is a happy number.

It is not a de Polignac number, because 2151303 - 2¹ = 2151301 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2151301) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15408 + ... + 15546.

It is an arithmetic number, because the mean of its divisors is an integer number (114240).

2^2151303 is an apocalyptic number.

2151303 is a deficient number, since it is larger than the sum of its proper divisors (1504377).

2151303 is a wasteful number, since it uses less digits than its factorization.

2151303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227.

The product of its (nonzero) digits is 90, while the sum is 15.

The square root of 2151303 is about 1466.7320818745. The cubic root of 2151303 is about 129.0923561932.

Adding to 2151303 its reverse (3031512), we get a palindrome (5182815).

The spelling of 2151303 in words is "two million, one hundred fifty-one thousand, three hundred three".