1246881 has 4 divisors (see below), whose sum is σ = 1662512. Its totient is φ = 831252.

The previous prime is 1246879. The next prime is 1246891. The reversal of 1246881 is 1886421.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1246881 - 2¹ = 1246879 is a prime.

It is a super-2 number, since 2×1246881² = 3109424456322, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

1246881 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1246841) 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, 207811 + ... + 207816.

It is an arithmetic number, because the mean of its divisors is an integer number (415628).

2^1246881 is an apocalyptic number.

It is an amenable number.

1246881 is a deficient number, since it is larger than the sum of its proper divisors (415631).

1246881 is an equidigital number, since it uses as much as digits as its factorization.

1246881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 415630.

The product of its digits is 3072, while the sum is 30.

The square root of 1246881 is about 1116.6382583451. The cubic root of 1246881 is about 107.6320641210.

The spelling of 1246881 in words is "one million, two hundred forty-six thousand, eight hundred eighty-one".