1641213112 has 32 divisors (see below), whose sum is σ = 3836603520. Its totient is φ = 639433440.

The previous prime is 1641213073. The next prime is 1641213151. The reversal of 1641213112 is 2113121461.

It is an interprime number because it is at equal distance from previous prime (1641213073) and next prime (1641213151).

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

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, 1331538 + ... + 1332769.

It is an arithmetic number, because the mean of its divisors is an integer number (119893860).

Almost surely, 2^1641213112 is an apocalyptic number.

It is an amenable number.

1641213112 is an abundant number, since it is smaller than the sum of its proper divisors (2195390408).

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

1641213112 is a wasteful number, since it uses less digits than its factorization.

1641213112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2664331 (or 2664327 counting only the distinct ones).

The product of its digits is 288, while the sum is 22.

The square root of 1641213112 is about 40511.8885267029. Note that the first 3 decimals coincide. The cubic root of 1641213112 is about 1179.5644068750.

Adding to 1641213112 its reverse (2113121461), we get a palindrome (3754334573).

The spelling of 1641213112 in words is "one billion, six hundred forty-one million, two hundred thirteen thousand, one hundred twelve".