2146561308 has 18 divisors (see below), whose sum is σ = 5426030064. Its totient is φ = 715520424.

The previous prime is 2146561301. The next prime is 2146561409. The reversal of 2146561308 is 8031656412.

It is a happy number.

2146561308 is a `hidden beast` number, since 21 + 46 + 561 + 30 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 59626703 = 2146561308 / (2 + 1 + 4 + 6 + 5 + 6 + 1 + 3 + 0 + 8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2146561301) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 29813316 + ... + 29813387.

Almost surely, 2^2146561308 is an apocalyptic number.

It is an amenable number.

2146561308 is an abundant number, since it is smaller than the sum of its proper divisors (3279468756).

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

2146561308 is a wasteful number, since it uses less digits than its factorization.

2146561308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59626713 (or 59626708 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 2146561308 is about 46330.9972696466. The cubic root of 2146561308 is about 1289.9744217030.

The spelling of 2146561308 in words is "two billion, one hundred forty-six million, five hundred sixty-one thousand, three hundred eight".