1271953 has 2 divisors, whose sum is σ = 1271954. Its totient is φ = 1271952.

The previous prime is 1271939. The next prime is 1271971. The reversal of 1271953 is 3591721.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1183744 + 88209 = 1088^2 + 297^2 .

It is a cyclic number.

It is not a de Polignac number, because 1271953 - 2¹³ = 1263761 is a prime.

It is not a weakly prime, because it can be changed into another prime (1271903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 635976 + 635977.

It is an arithmetic number, because the mean of its divisors is an integer number (635977).

2^1271953 is an apocalyptic number.

It is an amenable number.

1271953 is a deficient number, since it is larger than the sum of its proper divisors (1).

1271953 is an equidigital number, since it uses as much as digits as its factorization.

1271953 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1890, while the sum is 28.

The square root of 1271953 is about 1127.8089377195. The cubic root of 1271953 is about 108.3486957833.

It can be divided in two parts, 127 and 1953, that added together give a triangular number (2080 = T₆₄).

The spelling of 1271953 in words is "one million, two hundred seventy-one thousand, nine hundred fifty-three".