1146247 has 4 divisors (see below), whose sum is σ = 1149120. Its totient is φ = 1143376.

The previous prime is 1146221. The next prime is 1146263. The reversal of 1146247 is 7426411.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1146247 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1146217) 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, 718 + ... + 1675.

It is an arithmetic number, because the mean of its divisors is an integer number (287280).

2^1146247 is an apocalyptic number.

1146247 is a deficient number, since it is larger than the sum of its proper divisors (2873).

1146247 is an equidigital number, since it uses as much as digits as its factorization.

1146247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2872.

The product of its digits is 1344, while the sum is 25.

The square root of 1146247 is about 1070.6292542239. The cubic root of 1146247 is about 104.6548607092.

The spelling of 1146247 in words is "one million, one hundred forty-six thousand, two hundred forty-seven".