1455212417 has 2 divisors, whose sum is σ = 1455212418. Its totient is φ = 1455212416.

The previous prime is 1455212399. The next prime is 1455212443. The reversal of 1455212417 is 7142125541.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1438229776 + 16982641 = 37924^2 + 4121^2 .

It is an emirp because it is prime and its reverse (7142125541) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1455212417 - 2¹⁶ = 1455146881 is a prime.

It is not a weakly prime, because it can be changed into another prime (1455212117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 727606208 + 727606209.

It is an arithmetic number, because the mean of its divisors is an integer number (727606209).

Almost surely, 2^1455212417 is an apocalyptic number.

It is an amenable number.

1455212417 is a deficient number, since it is larger than the sum of its proper divisors (1).

1455212417 is an equidigital number, since it uses as much as digits as its factorization.

1455212417 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11200, while the sum is 32.

The square root of 1455212417 is about 38147.2465192443. The cubic root of 1455212417 is about 1133.2058224383.

Adding to 1455212417 its reverse (7142125541), we get a palindrome (8597337958).

The spelling of 1455212417 in words is "one billion, four hundred fifty-five million, two hundred twelve thousand, four hundred seventeen".