2145564230 has 16 divisors (see below), whose sum is σ = 3885144480. Its totient is φ = 853085952.

The previous prime is 2145564229. The next prime is 2145564247. The reversal of 2145564230 is 324655412.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 640715 + ... + 644054.

It is an arithmetic number, because the mean of its divisors is an integer number (242821530).

Almost surely, 2^2145564230 is an apocalyptic number.

2145564230 is a deficient number, since it is larger than the sum of its proper divisors (1739580250).

2145564230 is a wasteful number, since it uses less digits than its factorization.

2145564230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1284943.

The product of its (nonzero) digits is 28800, while the sum is 32.

The square root of 2145564230 is about 46320.2356427512. The cubic root of 2145564230 is about 1289.7746596758.

It can be divided in two parts, 21455642 and 30, that multiplied together give a triangular number (643669260 = T₃₅₈₇₉).

The spelling of 2145564230 in words is "two billion, one hundred forty-five million, five hundred sixty-four thousand, two hundred thirty".