1229247 has 12 divisors (see below), whose sum is σ = 1800864. Its totient is φ = 807840.

The previous prime is 1229237. The next prime is 1229257. The reversal of 1229247 is 7429221.

It is an interprime number because it is at equal distance from previous prime (1229237) and next prime (1229257).

It is not a de Polignac number, because 1229247 - 2¹⁶ = 1163711 is a prime.

It is a super-2 number, since 2×1229247² = 3022096374018, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1229247.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1229227) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 279 + ... + 1592.

It is an arithmetic number, because the mean of its divisors is an integer number (150072).

2^1229247 is an apocalyptic number.

1229247 is a deficient number, since it is larger than the sum of its proper divisors (571617).

1229247 is a wasteful number, since it uses less digits than its factorization.

1229247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1950 (or 1947 counting only the distinct ones).

The product of its digits is 2016, while the sum is 27.

The square root of 1229247 is about 1108.7141200508. The cubic root of 1229247 is about 107.1222581352.

The spelling of 1229247 in words is "one million, two hundred twenty-nine thousand, two hundred forty-seven".