2146430687 has 4 divisors (see below), whose sum is σ = 2157668736. Its totient is φ = 2135192640.

The previous prime is 2146430653. The next prime is 2146430701. The reversal of 2146430687 is 7860346412.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2146430687 - 2¹² = 2146426591 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2146430987) 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, 5618738 + ... + 5619119.

It is an arithmetic number, because the mean of its divisors is an integer number (539417184).

Almost surely, 2^2146430687 is an apocalyptic number.

2146430687 is a deficient number, since it is larger than the sum of its proper divisors (11238049).

2146430687 is a wasteful number, since it uses less digits than its factorization.

2146430687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11238048.

The product of its (nonzero) digits is 193536, while the sum is 41.

The square root of 2146430687 is about 46329.5875979918. The cubic root of 2146430687 is about 1289.9482556413.

The spelling of 2146430687 in words is "two billion, one hundred forty-six million, four hundred thirty thousand, six hundred eighty-seven".