1261471 has 4 divisors (see below), whose sum is σ = 1305000. Its totient is φ = 1217944.

The previous prime is 1261459. The next prime is 1261487. The reversal of 1261471 is 1741621.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1261471 - 2¹³ = 1253279 is a prime.

It is a super-3 number, since 3×1261471³ = 6022170783905970333, which contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1261411) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21721 + ... + 21778.

It is an arithmetic number, because the mean of its divisors is an integer number (326250).

2^1261471 is an apocalyptic number.

1261471 is a deficient number, since it is larger than the sum of its proper divisors (43529).

1261471 is an equidigital number, since it uses as much as digits as its factorization.

1261471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43528.

The product of its digits is 336, while the sum is 22.

The square root of 1261471 is about 1123.1522603815. The cubic root of 1261471 is about 108.0502452534.

The spelling of 1261471 in words is "one million, two hundred sixty-one thousand, four hundred seventy-one".