1261075 has 12 divisors (see below), whose sum is σ = 1587448. Its totient is φ = 993600.

The previous prime is 1261069. The next prime is 1261079. The reversal of 1261075 is 5701621.

It is not a de Polignac number, because 1261075 - 2¹⁹ = 736787 is a prime.

It is a Duffinian number.

1261075 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1261079) 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 in 11 ways as a sum of consecutive naturals, for example, 1480 + ... + 2170.

2^1261075 is an apocalyptic number.

1261075 is a deficient number, since it is larger than the sum of its proper divisors (326373).

1261075 is an equidigital number, since it uses as much as digits as its factorization.

1261075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 774 (or 769 counting only the distinct ones).

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

The square root of 1261075 is about 1122.9759570000. The cubic root of 1261075 is about 108.0389377203.

Adding to 1261075 its reverse (5701621), we get a palindrome (6962696).

The spelling of 1261075 in words is "one million, two hundred sixty-one thousand, seventy-five".