1261071 has 24 divisors (see below), whose sum is σ = 2141984. Its totient is φ = 699840.

The previous prime is 1261069. The next prime is 1261079. The reversal of 1261071 is 1701621.

It is not a de Polignac number, because 1261071 - 2¹ = 1261069 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 (1261079) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2061 + ... + 2601.

2^1261071 is an apocalyptic number.

1261071 is a deficient number, since it is larger than the sum of its proper divisors (880913).

1261071 is a wasteful number, since it uses less digits than its factorization.

1261071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 591 (or 588 counting only the distinct ones).

The product of its (nonzero) digits is 84, while the sum is 18.

The square root of 1261071 is about 1122.9741760165. The cubic root of 1261071 is about 108.0388234907.

Adding to 1261071 its reverse (1701621), we get a palindrome (2962692).

The spelling of 1261071 in words is "one million, two hundred sixty-one thousand, seventy-one".