2151332 has 12 divisors (see below), whose sum is σ = 3963120. Its totient is φ = 1019016.

The previous prime is 2151329. The next prime is 2151337. The reversal of 2151332 is 2331512.

It is a self number, because there is not a number n which added to its sum of digits gives 2151332.

It is not an unprimeable number, because it can be changed into a prime (2151337) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14078 + ... + 14229.

It is an arithmetic number, because the mean of its divisors is an integer number (330260).

2^2151332 is an apocalyptic number.

It is an amenable number.

2151332 is a deficient number, since it is larger than the sum of its proper divisors (1811788).

2151332 is a wasteful number, since it uses less digits than its factorization.

2151332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28330 (or 28328 counting only the distinct ones).

The product of its digits is 180, while the sum is 17.

The square root of 2151332 is about 1466.7419677639. The cubic root of 2151332 is about 129.0929362543.

Adding to 2151332 its product of digits (180), we get a palindrome (2151512).

Adding to 2151332 its reverse (2331512), we get a palindrome (4482844).

The spelling of 2151332 in words is "two million, one hundred fifty-one thousand, three hundred thirty-two".