2145144514 has 4 divisors (see below), whose sum is σ = 3217716774. Its totient is φ = 1072572256.

The previous prime is 2145144497. The next prime is 2145144571. The reversal of 2145144514 is 4154415412.

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

It can be written as a sum of positive squares in only one way, i.e., 2137675225 + 7469289 = 46235^2 + 2733^2 .

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 as a sum of consecutive naturals, namely, 536286127 + ... + 536286130.

Almost surely, 2^2145144514 is an apocalyptic number.

2145144514 is a deficient number, since it is larger than the sum of its proper divisors (1072572260).

2145144514 is a wasteful number, since it uses less digits than its factorization.

2145144514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1072572259.

The product of its digits is 12800, while the sum is 31.

The square root of 2145144514 is about 46315.7048310829. The cubic root of 2145144514 is about 1289.6905521395.

Adding to 2145144514 its reverse (4154415412), we get a palindrome (6299559926).

The spelling of 2145144514 in words is "two billion, one hundred forty-five million, one hundred forty-four thousand, five hundred fourteen".