1318477 has 2 divisors, whose sum is σ = 1318478. Its totient is φ = 1318476.

The previous prime is 1318463. The next prime is 1318487. The reversal of 1318477 is 7748131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1212201 + 106276 = 1101^2 + 326^2 .

It is a cyclic number.

It is not a de Polignac number, because 1318477 - 2⁷ = 1318349 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1318487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 659238 + 659239.

It is an arithmetic number, because the mean of its divisors is an integer number (659239).

2^1318477 is an apocalyptic number.

It is an amenable number.

1318477 is a deficient number, since it is larger than the sum of its proper divisors (1).

1318477 is an equidigital number, since it uses as much as digits as its factorization.

1318477 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4704, while the sum is 31.

The square root of 1318477 is about 1148.2495373393. The cubic root of 1318477 is about 109.6539261239.

The spelling of 1318477 in words is "one million, three hundred eighteen thousand, four hundred seventy-seven".