1042751947 has 2 divisors, whose sum is σ = 1042751948. Its totient is φ = 1042751946.

The previous prime is 1042751911. The next prime is 1042751951. The reversal of 1042751947 is 7491572401.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1042751947 - 2²³ = 1034363339 is a prime.

It is not a weakly prime, because it can be changed into another prime (1042751987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 521375973 + 521375974.

It is an arithmetic number, because the mean of its divisors is an integer number (521375974).

Almost surely, 2^1042751947 is an apocalyptic number.

1042751947 is a deficient number, since it is larger than the sum of its proper divisors (1).

1042751947 is an equidigital number, since it uses as much as digits as its factorization.

1042751947 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 70560, while the sum is 40.

The square root of 1042751947 is about 32291.6699320428. The cubic root of 1042751947 is about 1014.0522580949.

The spelling of 1042751947 in words is "one billion, forty-two million, seven hundred fifty-one thousand, nine hundred forty-seven".