1347261 has 8 divisors (see below), whose sum is σ = 1801824. Its totient is φ = 895440.

The previous prime is 1347223. The next prime is 1347263. The reversal of 1347261 is 1627431.

1347261 is a nontrivial binomial coefficient, being equal to C(1642, 2).

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

It is not a de Polignac number, because 1347261 - 2¹³ = 1339069 is a prime.

It is a super-2 number, since 2×1347261² = 3630224404242, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1347263) 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, 1231 + ... + 2051.

It is an arithmetic number, because the mean of its divisors is an integer number (225228).

2^1347261 is an apocalyptic number.

1347261 is the 1641-st triangular number and also the 821-st hexagonal number.

It is an amenable number.

1347261 is a deficient number, since it is larger than the sum of its proper divisors (454563).

1347261 is an equidigital number, since it uses as much as digits as its factorization.

1347261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1371.

The product of its digits is 1008, while the sum is 24.

The square root of 1347261 is about 1160.7157274716. The cubic root of 1347261 is about 110.4461494467.

It can be divided in two parts, 13 and 47261, that added together give a palindrome (47274).

The spelling of 1347261 in words is "one million, three hundred forty-seven thousand, two hundred sixty-one".