1249986 has 16 divisors (see below), whose sum is σ = 2515968. Its totient is φ = 414000.

The previous prime is 1249943. The next prime is 1249999. The reversal of 1249986 is 6899421.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 511 + ... + 1661.

It is an arithmetic number, because the mean of its divisors is an integer number (157248).

2^1249986 is an apocalyptic number.

1249986 is an abundant number, since it is smaller than the sum of its proper divisors (1265982).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1249986 is a wasteful number, since it uses less digits than its factorization.

1249986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1337.

The product of its digits is 31104, while the sum is 39.

The square root of 1249986 is about 1118.0277277420. The cubic root of 1249986 is about 107.7213323390.

The spelling of 1249986 in words is "one million, two hundred forty-nine thousand, nine hundred eighty-six".