2151400412 has 12 divisors (see below), whose sum is σ = 4302800880. Its totient is φ = 922028736.

The previous prime is 2151400411. The next prime is 2151400417. The reversal of 2151400412 is 2140041512.

It is a happy number.

2151400412 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2151400411) 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, 38417837 + ... + 38417892.

It is an arithmetic number, because the mean of its divisors is an integer number (358566740).

Almost surely, 2^2151400412 is an apocalyptic number.

It is an amenable number.

2151400412 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2151400412 is a wasteful number, since it uses less digits than its factorization.

2151400412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76835740 (or 76835738 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 2151400412 is about 46383.1910502070. The cubic root of 2151400412 is about 1290.9430461772.

Adding to 2151400412 its reverse (2140041512), we get a palindrome (4291441924).

The spelling of 2151400412 in words is "two billion, one hundred fifty-one million, four hundred thousand, four hundred twelve".