2151311404 has 24 divisors (see below), whose sum is σ = 4323211200. Its totient is φ = 926401680.

The previous prime is 2151311341. The next prime is 2151311419. The reversal of 2151311404 is 4041131512.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1285834 + ... + 1287505.

It is an arithmetic number, because the mean of its divisors is an integer number (180133800).

Almost surely, 2^2151311404 is an apocalyptic number.

It is an amenable number.

2151311404 is an abundant number, since it is smaller than the sum of its proper divisors (2171899796).

2151311404 is a wasteful number, since it uses less digits than its factorization.

2151311404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2573373 (or 2573371 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 2151311404 is about 46382.2315547667. The cubic root of 2151311404 is about 1290.9252429140.

Adding to 2151311404 its reverse (4041131512), we get a palindrome (6192442916).

The spelling of 2151311404 in words is "two billion, one hundred fifty-one million, three hundred eleven thousand, four hundred four".