1261652 has 36 divisors (see below), whose sum is σ = 2647764. Its totient is φ = 524160.

The previous prime is 1261649. The next prime is 1261697. The reversal of 1261652 is 2561621.

It can be written as a sum of positive squares in 2 ways, for example, as 188356 + 1073296 = 434^2 + 1036^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7958 + ... + 8114.

It is an arithmetic number, because the mean of its divisors is an integer number (73549).

2^1261652 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1261652, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1323882).

1261652 is an abundant number, since it is smaller than the sum of its proper divisors (1386112).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1261652 is a wasteful number, since it uses less digits than its factorization.

1261652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216 (or 207 counting only the distinct ones).

The product of its digits is 720, while the sum is 23.

The square root of 1261652 is about 1123.2328342779. The cubic root of 1261652 is about 108.0554128076.

The spelling of 1261652 in words is "one million, two hundred sixty-one thousand, six hundred fifty-two".