1261252 has 6 divisors (see below), whose sum is σ = 2207198. Its totient is φ = 630624.

The previous prime is 1261223. The next prime is 1261259. The reversal of 1261252 is 2521621.

It can be written as a sum of positive squares in only one way, i.e., 1218816 + 42436 = 1104^2 + 206^2 .

It is not an unprimeable number, because it can be changed into a prime (1261259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157653 + ... + 157660.

2^1261252 is an apocalyptic number.

It is an amenable number.

1261252 is a deficient number, since it is larger than the sum of its proper divisors (945946).

1261252 is a wasteful number, since it uses less digits than its factorization.

1261252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315317 (or 315315 counting only the distinct ones).

The product of its digits is 240, while the sum is 19.

The square root of 1261252 is about 1123.0547626897. The cubic root of 1261252 is about 108.0439921375.

Adding to 1261252 its reverse (2521621), we get a palindrome (3782873).

It can be divided in two parts, 126 and 1252, that added together give a triangular number (1378 = T₅₂).

The spelling of 1261252 in words is "one million, two hundred sixty-one thousand, two hundred fifty-two".