1261057 has 8 divisors (see below), whose sum is σ = 1472256. Its totient is φ = 1057632.

The previous prime is 1261033. The next prime is 1261069. The reversal of 1261057 is 7501621.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1261057 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1261157) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1588 + ... + 2245.

It is an arithmetic number, because the mean of its divisors is an integer number (184032).

2^1261057 is an apocalyptic number.

It is an amenable number.

1261057 is a deficient number, since it is larger than the sum of its proper divisors (211199).

1261057 is an equidigital number, since it uses as much as digits as its factorization.

1261057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3887.

The product of its (nonzero) digits is 420, while the sum is 22.

The square root of 1261057 is about 1122.9679425522. The cubic root of 1261057 is about 108.0384236853.

Adding to 1261057 its reverse (7501621), we get a palindrome (8762678).

The spelling of 1261057 in words is "one million, two hundred sixty-one thousand, fifty-seven".