1249971 has 8 divisors (see below), whose sum is σ = 1711824. Its totient is φ = 810720.

The previous prime is 1249943. The next prime is 1249999. The reversal of 1249971 is 1799421.

It is an interprime number because it is at equal distance from previous prime (1249943) and next prime (1249999).

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

It is not a de Polignac number, because 1249971 - 2⁵ = 1249939 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1249901) 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, 5520 + ... + 5741.

It is an arithmetic number, because the mean of its divisors is an integer number (213978).

2^1249971 is an apocalyptic number.

1249971 is a deficient number, since it is larger than the sum of its proper divisors (461853).

1249971 is a wasteful number, since it uses less digits than its factorization.

1249971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11301.

The product of its digits is 4536, while the sum is 33.

The square root of 1249971 is about 1118.0210194804. The cubic root of 1249971 is about 107.7209014471.

The spelling of 1249971 in words is "one million, two hundred forty-nine thousand, nine hundred seventy-one".