1456487917 has 2 divisors, whose sum is σ = 1456487918. Its totient is φ = 1456487916.

The previous prime is 1456487887. The next prime is 1456487933. The reversal of 1456487917 is 7197846541.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 989668681 + 466819236 = 31459^2 + 21606^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1456487917 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1456487947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 728243958 + 728243959.

It is an arithmetic number, because the mean of its divisors is an integer number (728243959).

Almost surely, 2^1456487917 is an apocalyptic number.

It is an amenable number.

1456487917 is a deficient number, since it is larger than the sum of its proper divisors (1).

1456487917 is an equidigital number, since it uses as much as digits as its factorization.

1456487917 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1693440, while the sum is 52.

The square root of 1456487917 is about 38163.9609710523. The cubic root of 1456487917 is about 1133.5368123598.

The spelling of 1456487917 in words is "one billion, four hundred fifty-six million, four hundred eighty-seven thousand, nine hundred seventeen".