1335542947 has 2 divisors, whose sum is σ = 1335542948. Its totient is φ = 1335542946.

The previous prime is 1335542911. The next prime is 1335543007. The reversal of 1335542947 is 7492455331.

It is a weak prime.

It is an emirp because it is prime and its reverse (7492455331) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1335542947 is a prime.

It is not a weakly prime, because it can be changed into another prime (1335543947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 667771473 + 667771474.

It is an arithmetic number, because the mean of its divisors is an integer number (667771474).

Almost surely, 2^1335542947 is an apocalyptic number.

1335542947 is a deficient number, since it is larger than the sum of its proper divisors (1).

1335542947 is an equidigital number, since it uses as much as digits as its factorization.

1335542947 is an evil number, because the sum of its binary digits is even.

The product of its digits is 453600, while the sum is 43.

The square root of 1335542947 is about 36545.0810233060. The cubic root of 1335542947 is about 1101.2500793779.

The spelling of 1335542947 in words is "one billion, three hundred thirty-five million, five hundred forty-two thousand, nine hundred forty-seven".