1931127242 has 32 divisors (see below), whose sum is σ = 3301392384. Its totient is φ = 838609200.

The previous prime is 1931127241. The next prime is 1931127277. The reversal of 1931127242 is 2427211391.

It is a junction number, because it is equal to n+sod(n) for n = 1931127199 and 1931127208.

It is not an unprimeable number, because it can be changed into a prime (1931127241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 548267 + ... + 551777.

It is an arithmetic number, because the mean of its divisors is an integer number (103168512).

Almost surely, 2^1931127242 is an apocalyptic number.

1931127242 is a deficient number, since it is larger than the sum of its proper divisors (1370265142).

1931127242 is a wasteful number, since it uses less digits than its factorization.

1931127242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4634.

The product of its digits is 6048, while the sum is 32.

The square root of 1931127242 is about 43944.5928641966. The cubic root of 1931127242 is about 1245.2894155744.

The spelling of 1931127242 in words is "one billion, nine hundred thirty-one million, one hundred twenty-seven thousand, two hundred forty-two".