1240133047 has 2 divisors, whose sum is σ = 1240133048. Its totient is φ = 1240133046.

The previous prime is 1240132997. The next prime is 1240133087. The reversal of 1240133047 is 7403310421.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1240133047 - 2²³ = 1231744439 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1240133087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 620066523 + 620066524.

It is an arithmetic number, because the mean of its divisors is an integer number (620066524).

Almost surely, 2^1240133047 is an apocalyptic number.

1240133047 is a deficient number, since it is larger than the sum of its proper divisors (1).

1240133047 is an equidigital number, since it uses as much as digits as its factorization.

1240133047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 1240133047 is about 35215.5228131005. The cubic root of 1240133047 is about 1074.3754936267.

Adding to 1240133047 its reverse (7403310421), we get a palindrome (8643443468).

The spelling of 1240133047 in words is "one billion, two hundred forty million, one hundred thirty-three thousand, forty-seven".