1345204212 has 24 divisors (see below), whose sum is σ = 3424156512. Its totient is φ = 407637600.

The previous prime is 1345204181. The next prime is 1345204213. The reversal of 1345204212 is 2124025431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1345204213) 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, 5095339 + ... + 5095602.

It is an arithmetic number, because the mean of its divisors is an integer number (142673188).

Almost surely, 2^1345204212 is an apocalyptic number.

1345204212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1345204212 is an abundant number, since it is smaller than the sum of its proper divisors (2078952300).

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

1345204212 is a wasteful number, since it uses less digits than its factorization.

1345204212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10190959 (or 10190957 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 1345204212 is about 36677.0256700295. The cubic root of 1345204212 is about 1103.8991683535.

Adding to 1345204212 its reverse (2124025431), we get a palindrome (3469229643).

The spelling of 1345204212 in words is "one billion, three hundred forty-five million, two hundred four thousand, two hundred twelve".