1042254247 has 2 divisors, whose sum is σ = 1042254248. Its totient is φ = 1042254246.

The previous prime is 1042254197. The next prime is 1042254259. The reversal of 1042254247 is 7424522401.

It is a strong prime.

It is an emirp because it is prime and its reverse (7424522401) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1042254247 - 2⁷ = 1042254119 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1042254847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 521127123 + 521127124.

It is an arithmetic number, because the mean of its divisors is an integer number (521127124).

Almost surely, 2^1042254247 is an apocalyptic number.

1042254247 is a deficient number, since it is larger than the sum of its proper divisors (1).

1042254247 is an equidigital number, since it uses as much as digits as its factorization.

1042254247 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17920, while the sum is 31.

The square root of 1042254247 is about 32283.9626904753. The cubic root of 1042254247 is about 1013.8908984902.

Adding to 1042254247 its reverse (7424522401), we get a palindrome (8466776648).

The spelling of 1042254247 in words is "one billion, forty-two million, two hundred fifty-four thousand, two hundred forty-seven".