1455213047 has 2 divisors, whose sum is σ = 1455213048. Its totient is φ = 1455213046.

The previous prime is 1455213043. The next prime is 1455213077. The reversal of 1455213047 is 7403125541.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1455213047 - 2² = 1455213043 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1455213043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 727606523 + 727606524.

It is an arithmetic number, because the mean of its divisors is an integer number (727606524).

Almost surely, 2^1455213047 is an apocalyptic number.

1455213047 is a deficient number, since it is larger than the sum of its proper divisors (1).

1455213047 is an equidigital number, since it uses as much as digits as its factorization.

1455213047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16800, while the sum is 32.

The square root of 1455213047 is about 38147.2547767202. The cubic root of 1455213047 is about 1133.2059859698.

Adding to 1455213047 its reverse (7403125541), we get a palindrome (8858338588).

The spelling of 1455213047 in words is "one billion, four hundred fifty-five million, two hundred thirteen thousand, forty-seven".