1277253 has 6 divisors (see below), whose sum is σ = 1844934. Its totient is φ = 851496.

The previous prime is 1277249. The next prime is 1277257. The reversal of 1277253 is 3527721.

It is an interprime number because it is at equal distance from previous prime (1277249) and next prime (1277257).

It can be written as a sum of positive squares in only one way, i.e., 1077444 + 199809 = 1038^2 + 447^2 .

It is not a de Polignac number, because 1277253 - 2² = 1277249 is a prime.

1277253 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1277257) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 70950 + ... + 70967.

It is an arithmetic number, because the mean of its divisors is an integer number (307489).

2^1277253 is an apocalyptic number.

It is an amenable number.

1277253 is a deficient number, since it is larger than the sum of its proper divisors (567681).

1277253 is a wasteful number, since it uses less digits than its factorization.

1277253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141923 (or 141920 counting only the distinct ones).

The product of its digits is 2940, while the sum is 27.

The square root of 1277253 is about 1130.1561838967. The cubic root of 1277253 is about 108.4989771046.

The spelling of 1277253 in words is "one million, two hundred seventy-seven thousand, two hundred fifty-three".