1071493931 has 2 divisors, whose sum is σ = 1071493932. Its totient is φ = 1071493930.

The previous prime is 1071493879. The next prime is 1071493957. The reversal of 1071493931 is 1393941701.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1071493931 is a prime.

It is a super-2 number, since 2×1071493931² = 2296198488339665522, which contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (1071493531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 535746965 + 535746966.

It is an arithmetic number, because the mean of its divisors is an integer number (535746966).

Almost surely, 2^1071493931 is an apocalyptic number.

1071493931 is a deficient number, since it is larger than the sum of its proper divisors (1).

1071493931 is an equidigital number, since it uses as much as digits as its factorization.

1071493931 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20412, while the sum is 38.

The square root of 1071493931 is about 32733.6819041183. The cubic root of 1071493931 is about 1023.2849148141.

The spelling of 1071493931 in words is "one billion, seventy-one million, four hundred ninety-three thousand, nine hundred thirty-one".