1040242997 has 2 divisors, whose sum is σ = 1040242998. Its totient is φ = 1040242996.

The previous prime is 1040242993. The next prime is 1040242999. The reversal of 1040242997 is 7992420401.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 600544036 + 439698961 = 24506^2 + 20969^2 .

It is a cyclic number.

It is not a de Polignac number, because 1040242997 - 2² = 1040242993 is a prime.

Together with 1040242999, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1040242997.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1040242991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 520121498 + 520121499.

It is an arithmetic number, because the mean of its divisors is an integer number (520121499).

Almost surely, 2^1040242997 is an apocalyptic number.

It is an amenable number.

1040242997 is a deficient number, since it is larger than the sum of its proper divisors (1).

1040242997 is an equidigital number, since it uses as much as digits as its factorization.

1040242997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 1040242997 is about 32252.7982816995. The cubic root of 1040242997 is about 1013.2383062316.

The spelling of 1040242997 in words is "one billion, forty million, two hundred forty-two thousand, nine hundred ninety-seven".