1261552 has 20 divisors (see below), whose sum is σ = 2511496. Its totient is φ = 613440.

The previous prime is 1261549. The next prime is 1261567. The reversal of 1261552 is 2551621.

It is a super-3 number, since 3×1261552³ = 6023330922718285824, which contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 474 + ... + 1657.

2^1261552 is an apocalyptic number.

It is an amenable number.

1261552 is a deficient number, since it is larger than the sum of its proper divisors (1249944).

1261552 is a wasteful number, since it uses less digits than its factorization.

1261552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2176 (or 2170 counting only the distinct ones).

The product of its digits is 600, while the sum is 22.

The square root of 1261552 is about 1123.1883190276. The cubic root of 1261552 is about 108.0525578664.

The spelling of 1261552 in words is "one million, two hundred sixty-one thousand, five hundred fifty-two".