1147256 has 16 divisors (see below), whose sum is σ = 2346840. Its totient is φ = 521440.

The previous prime is 1147253. The next prime is 1147271. The reversal of 1147256 is 6527411.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1147253) 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, 6431 + ... + 6606.

2^1147256 is an apocalyptic number.

It is an amenable number.

1147256 is an abundant number, since it is smaller than the sum of its proper divisors (1199584).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1147256 is a wasteful number, since it uses less digits than its factorization.

1147256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13054 (or 13050 counting only the distinct ones).

The product of its digits is 1680, while the sum is 26.

The square root of 1147256 is about 1071.1003687797. The cubic root of 1147256 is about 104.6855596730.

The spelling of 1147256 in words is "one million, one hundred forty-seven thousand, two hundred fifty-six".