2151311548 has 12 divisors (see below), whose sum is σ = 3792276432. Its totient is φ = 1067804000.

The previous prime is 2151311531. The next prime is 2151311567. The reversal of 2151311548 is 8451131512.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1962328 + ... + 1963423.

It is an arithmetic number, because the mean of its divisors is an integer number (316023036).

Almost surely, 2^2151311548 is an apocalyptic number.

It is an amenable number.

2151311548 is a deficient number, since it is larger than the sum of its proper divisors (1640964884).

2151311548 is a wasteful number, since it uses less digits than its factorization.

2151311548 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3925892 (or 3925890 counting only the distinct ones).

The product of its digits is 4800, while the sum is 31.

The square root of 2151311548 is about 46382.2331070853. The cubic root of 2151311548 is about 1290.9252717171.

The spelling of 2151311548 in words is "two billion, one hundred fifty-one million, three hundred eleven thousand, five hundred forty-eight".