2145630494 has 16 divisors (see below), whose sum is σ = 3716145888. Its totient is φ = 910075392.

The previous prime is 2145630493. The next prime is 2145630523. The reversal of 2145630494 is 4940365412.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2145630493) 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, 788639 + ... + 791354.

It is an arithmetic number, because the mean of its divisors is an integer number (232259118).

Almost surely, 2^2145630494 is an apocalyptic number.

2145630494 is a deficient number, since it is larger than the sum of its proper divisors (1570515394).

2145630494 is a wasteful number, since it uses less digits than its factorization.

2145630494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1580099.

The product of its (nonzero) digits is 103680, while the sum is 38.

The square root of 2145630494 is about 46320.9509185638. The cubic root of 2145630494 is about 1289.7879374183.

The spelling of 2145630494 in words is "two billion, one hundred forty-five million, six hundred thirty thousand, four hundred ninety-four".