2131959794 has 4 divisors (see below), whose sum is σ = 3197939694. Its totient is φ = 1065979896.

The previous prime is 2131959773. The next prime is 2131959803. The reversal of 2131959794 is 4979591312.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1512198769 + 619761025 = 38887^2 + 24895^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 532989947 + ... + 532989950.

Almost surely, 2^2131959794 is an apocalyptic number.

2131959794 is a deficient number, since it is larger than the sum of its proper divisors (1065979900).

2131959794 is a wasteful number, since it uses less digits than its factorization.

2131959794 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1065979899.

The product of its digits is 612360, while the sum is 50.

The square root of 2131959794 is about 46173.1501416137. The cubic root of 2131959794 is about 1287.0428414831.

The spelling of 2131959794 in words is "two billion, one hundred thirty-one million, nine hundred fifty-nine thousand, seven hundred ninety-four".