2143331554 has 32 divisors (see below), whose sum is σ = 4031596800. Its totient is φ = 831909312.

The previous prime is 2143331513. The next prime is 2143331579. The reversal of 2143331554 is 4551333412.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 101454 + ... + 120745.

It is an arithmetic number, because the mean of its divisors is an integer number (125987400).

Almost surely, 2^2143331554 is an apocalyptic number.

2143331554 is a deficient number, since it is larger than the sum of its proper divisors (1888265246).

2143331554 is a wasteful number, since it uses less digits than its factorization.

2143331554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222274.

The product of its digits is 21600, while the sum is 31.

The square root of 2143331554 is about 46296.1289310456. The cubic root of 2143331554 is about 1289.3271241945.

Adding to 2143331554 its reverse (4551333412), we get a palindrome (6694664966).

The spelling of 2143331554 in words is "two billion, one hundred forty-three million, three hundred thirty-one thousand, five hundred fifty-four".