2151632 has 20 divisors (see below), whose sum is σ = 4764576. Its totient is φ = 922080.

The previous prime is 2151629. The next prime is 2151637. The reversal of 2151632 is 2361512.

2151632 is nontrivially palindromic in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2151637) 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, 9494 + ... + 9717.

2^2151632 is an apocalyptic number.

It is an amenable number.

2151632 is an abundant number, since it is smaller than the sum of its proper divisors (2612944).

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

2151632 is a wasteful number, since it uses less digits than its factorization.

2151632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19226 (or 19220 counting only the distinct ones).

The product of its digits is 360, while the sum is 20.

The square root of 2151632 is about 1466.8442316756. The cubic root of 2151632 is about 129.0989365804.

The spelling of 2151632 in words is "two million, one hundred fifty-one thousand, six hundred thirty-two".