1277461 has 2 divisors, whose sum is σ = 1277462. Its totient is φ = 1277460.

The previous prime is 1277449. The next prime is 1277477. The reversal of 1277461 is 1647721.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1168561 + 108900 = 1081^2 + 330^2 .

It is a cyclic number.

It is not a de Polignac number, because 1277461 - 2⁵ = 1277429 is a prime.

1277461 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1277491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 638730 + 638731.

It is an arithmetic number, because the mean of its divisors is an integer number (638731).

2^1277461 is an apocalyptic number.

It is an amenable number.

1277461 is a deficient number, since it is larger than the sum of its proper divisors (1).

1277461 is an equidigital number, since it uses as much as digits as its factorization.

1277461 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2352, while the sum is 28.

The square root of 1277461 is about 1130.2482028298. The cubic root of 1277461 is about 108.5048664526.

The spelling of 1277461 in words is "one million, two hundred seventy-seven thousand, four hundred sixty-one".