1026131983 has 4 divisors (see below), whose sum is σ = 1026215568. Its totient is φ = 1026048400.

The previous prime is 1026131947. The next prime is 1026131987. The reversal of 1026131983 is 3891316201.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 3891316201 = 17 ⋅228900953.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1026131983 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1026131987) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19366 + ... + 49267.

It is an arithmetic number, because the mean of its divisors is an integer number (256553892).

Almost surely, 2^1026131983 is an apocalyptic number.

1026131983 is a deficient number, since it is larger than the sum of its proper divisors (83585).

1026131983 is an equidigital number, since it uses as much as digits as its factorization.

1026131983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83584.

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 1026131983 is about 32033.2949132617. The cubic root of 1026131983 is about 1008.6358680996.

The spelling of 1026131983 in words is "one billion, twenty-six million, one hundred thirty-one thousand, nine hundred eighty-three".