1261242 has 24 divisors (see below), whose sum is σ = 2800980. Its totient is φ = 409920.

The previous prime is 1261223. The next prime is 1261259. The reversal of 1261242 is 2421621.

1261242 is a `hidden beast` number, since 12 + 612 + 42 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1022121 + 239121 = 1011^2 + 489^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

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 11 ways as a sum of consecutive naturals, for example, 117 + ... + 1592.

2^1261242 is an apocalyptic number.

1261242 is an abundant number, since it is smaller than the sum of its proper divisors (1539738).

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

1261242 is a wasteful number, since it uses less digits than its factorization.

1261242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1758 (or 1755 counting only the distinct ones).

The product of its digits is 192, while the sum is 18.

The square root of 1261242 is about 1123.0503105382. The cubic root of 1261242 is about 108.0437065898.

Adding to 1261242 its reverse (2421621), we get a palindrome (3682863).

The spelling of 1261242 in words is "one million, two hundred sixty-one thousand, two hundred forty-two".