2131738450 has 24 divisors (see below), whose sum is σ = 3989374128. Its totient is φ = 847460880.

The previous prime is 2131738369. The next prime is 2131738451. The reversal of 2131738450 is 548371312.

It is not an unprimeable number, because it can be changed into a prime (2131738451) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 122632 + ... + 138931.

It is an arithmetic number, because the mean of its divisors is an integer number (166223922).

Almost surely, 2^2131738450 is an apocalyptic number.

2131738450 is a deficient number, since it is larger than the sum of its proper divisors (1857635678).

2131738450 is a wasteful number, since it uses less digits than its factorization.

2131738450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261738 (or 261733 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 2131738450 is about 46170.7531885717. The cubic root of 2131738450 is about 1286.9982988873.

The spelling of 2131738450 in words is "two billion, one hundred thirty-one million, seven hundred thirty-eight thousand, four hundred fifty".