2151633432 has 32 divisors (see below), whose sum is σ = 5792860080. Its totient is φ = 662040960.

The previous prime is 2151633349. The next prime is 2151633433. The reversal of 2151633432 is 2343361512.

It is a self number, because there is not a number n which added to its sum of digits gives 2151633432.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2151633433) 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, 3447819 + ... + 3448442.

Almost surely, 2^2151633432 is an apocalyptic number.

It is an amenable number.

2151633432 is an abundant number, since it is smaller than the sum of its proper divisors (3641226648).

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

2151633432 is a wasteful number, since it uses less digits than its factorization.

2151633432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6896283 (or 6896279 counting only the distinct ones).

The product of its digits is 12960, while the sum is 30.

The square root of 2151633432 is about 46385.7028835394. The cubic root of 2151633432 is about 1290.9896522060.

Adding to 2151633432 its reverse (2343361512), we get a palindrome (4494994944).

The spelling of 2151633432 in words is "two billion, one hundred fifty-one million, six hundred thirty-three thousand, four hundred thirty-two".