1263753 has 6 divisors (see below), whose sum is σ = 1825434. Its totient is φ = 842496.

The previous prime is 1263751. The next prime is 1263761. The reversal of 1263753 is 3573621.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1192464 + 71289 = 1092^2 + 267^2 .

It is not a de Polignac number, because 1263753 - 2¹ = 1263751 is a prime.

1263753 is a lucky number.

It is a plaindrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (1263751) 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, 70200 + ... + 70217.

It is an arithmetic number, because the mean of its divisors is an integer number (304239).

2^1263753 is an apocalyptic number.

It is an amenable number.

1263753 is a deficient number, since it is larger than the sum of its proper divisors (561681).

1263753 is a wasteful number, since it uses less digits than its factorization.

1263753 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140423 (or 140420 counting only the distinct ones).

The product of its digits is 3780, while the sum is 27.

The square root of 1263753 is about 1124.1676921172. The cubic root of 1263753 is about 108.1153602731.

It can be divided in two parts, 1263 and 753, that added together give a triangular number (2016 = T₆₃).

The spelling of 1263753 in words is "one million, two hundred sixty-three thousand, seven hundred fifty-three".