1641151212 has 24 divisors (see below), whose sum is σ = 3830968176. Its totient is φ = 546819648.

The previous prime is 1641151199. The next prime is 1641151229. The reversal of 1641151212 is 2121511461.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2118 + ... + 57330.

It is an arithmetic number, because the mean of its divisors is an integer number (159623674).

Almost surely, 2^1641151212 is an apocalyptic number.

1641151212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1641151212 is an abundant number, since it is smaller than the sum of its proper divisors (2189816964).

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

1641151212 is a wasteful number, since it uses less digits than its factorization.

1641151212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57697 (or 57695 counting only the distinct ones).

The product of its digits is 480, while the sum is 24.

The square root of 1641151212 is about 40511.1245462280. The cubic root of 1641151212 is about 1179.5495772033.

Adding to 1641151212 its reverse (2121511461), we get a palindrome (3762662673).

The spelling of 1641151212 in words is "one billion, six hundred forty-one million, one hundred fifty-one thousand, two hundred twelve".