1229147 has 8 divisors (see below), whose sum is σ = 1270080. Its totient is φ = 1189000.

The previous prime is 1229141. The next prime is 1229149. The reversal of 1229147 is 7419221.

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

It is a cyclic number.

It is not a de Polignac number, because 1229147 - 2⁴ = 1229131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1229141) 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, 4772 + ... + 5022.

It is an arithmetic number, because the mean of its divisors is an integer number (158760).

2^1229147 is an apocalyptic number.

1229147 is a deficient number, since it is larger than the sum of its proper divisors (40933).

1229147 is an equidigital number, since it uses as much as digits as its factorization.

1229147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 393.

The product of its digits is 1008, while the sum is 26.

The square root of 1229147 is about 1108.6690218456. The cubic root of 1229147 is about 107.1193532359.

The spelling of 1229147 in words is "one million, two hundred twenty-nine thousand, one hundred forty-seven".