2134521988 has 24 divisors (see below), whose sum is σ = 3857865984. Its totient is φ = 1032309600.

The previous prime is 2134521973. The next prime is 2134522007. The reversal of 2134521988 is 8891254312.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 370506 + ... + 376222.

It is an arithmetic number, because the mean of its divisors is an integer number (160744416).

Almost surely, 2^2134521988 is an apocalyptic number.

It is an amenable number.

2134521988 is a deficient number, since it is larger than the sum of its proper divisors (1723343996).

2134521988 is a wasteful number, since it uses less digits than its factorization.

2134521988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8763 (or 8761 counting only the distinct ones).

The product of its digits is 138240, while the sum is 43.

The square root of 2134521988 is about 46200.8873074966. The cubic root of 2134521988 is about 1287.5582253870.

The spelling of 2134521988 in words is "two billion, one hundred thirty-four million, five hundred twenty-one thousand, nine hundred eighty-eight".