1240994927 has 2 divisors, whose sum is σ = 1240994928. Its totient is φ = 1240994926.

The previous prime is 1240994893. The next prime is 1240994957. The reversal of 1240994927 is 7294990421.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1240994927 - 2¹⁰ = 1240993903 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1240994957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 620497463 + 620497464.

It is an arithmetic number, because the mean of its divisors is an integer number (620497464).

Almost surely, 2^1240994927 is an apocalyptic number.

1240994927 is a deficient number, since it is larger than the sum of its proper divisors (1).

1240994927 is an equidigital number, since it uses as much as digits as its factorization.

1240994927 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 326592, while the sum is 47.

The square root of 1240994927 is about 35227.7579048114. The cubic root of 1240994927 is about 1074.6243293784.

The spelling of 1240994927 in words is "one billion, two hundred forty million, nine hundred ninety-four thousand, nine hundred twenty-seven".