1249667 has 4 divisors (see below), whose sum is σ = 1260840. Its totient is φ = 1238496.

The previous prime is 1249657. The next prime is 1249669. The reversal of 1249667 is 7669421.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1249667 - 2⁶ = 1249603 is a prime.

It is a super-2 number, since 2×1249667² = 3123335221778, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1249669) 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, 5417 + ... + 5642.

It is an arithmetic number, because the mean of its divisors is an integer number (315210).

2^1249667 is an apocalyptic number.

1249667 is a deficient number, since it is larger than the sum of its proper divisors (11173).

1249667 is a wasteful number, since it uses less digits than its factorization.

1249667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11172.

The product of its digits is 18144, while the sum is 35.

The square root of 1249667 is about 1117.8850567031. The cubic root of 1249667 is about 107.7121679620.

The spelling of 1249667 in words is "one million, two hundred forty-nine thousand, six hundred sixty-seven".