1261849 has 8 divisors (see below), whose sum is σ = 1334592. Its totient is φ = 1190640.

The previous prime is 1261837. The next prime is 1261861. The reversal of 1261849 is 9481621.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1261837) and next prime (1261861).

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

It is a cyclic number.

It is not a de Polignac number, because 1261849 - 2⁷ = 1261721 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1261849.

It is not an unprimeable number, because it can be changed into a prime (1261829) 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, 1579 + ... + 2239.

It is an arithmetic number, because the mean of its divisors is an integer number (166824).

2^1261849 is an apocalyptic number.

It is an amenable number.

1261849 is a deficient number, since it is larger than the sum of its proper divisors (72743).

1261849 is an equidigital number, since it uses as much as digits as its factorization.

1261849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 767.

The product of its digits is 3456, while the sum is 31.

The square root of 1261849 is about 1123.3205241604. The cubic root of 1261849 is about 108.0610366004.

The spelling of 1261849 in words is "one million, two hundred sixty-one thousand, eight hundred forty-nine".