1272451 has 2 divisors, whose sum is σ = 1272452. Its totient is φ = 1272450.

The previous prime is 1272443. The next prime is 1272461. The reversal of 1272451 is 1542721.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1272451 - 2³ = 1272443 is a prime.

It is not a weakly prime, because it can be changed into another prime (1272421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 636225 + 636226.

It is an arithmetic number, because the mean of its divisors is an integer number (636226).

2^1272451 is an apocalyptic number.

1272451 is a deficient number, since it is larger than the sum of its proper divisors (1).

1272451 is an equidigital number, since it uses as much as digits as its factorization.

1272451 is an evil number, because the sum of its binary digits is even.

The product of its digits is 560, while the sum is 22.

The square root of 1272451 is about 1128.0296981906. The cubic root of 1272451 is about 108.3628343062.

The spelling of 1272451 in words is "one million, two hundred seventy-two thousand, four hundred fifty-one".