1117256 has 32 divisors (see below), whose sum is σ = 2436480. Its totient is φ = 470400.

The previous prime is 1117253. The next prime is 1117267. The reversal of 1117256 is 6527111.

1117256 = 39² + 40² + ... + 150².

It is a super-3 number, since 3×1117256³ = 4183881173339739648, which contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (1117253) 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, 3836 + ... + 4116.

It is an arithmetic number, because the mean of its divisors is an integer number (76140).

2^1117256 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1117256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1218240).

1117256 is an abundant number, since it is smaller than the sum of its proper divisors (1319224).

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

1117256 is a wasteful number, since it uses less digits than its factorization.

1117256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 365 (or 361 counting only the distinct ones).

The product of its digits is 420, while the sum is 23.

The square root of 1117256 is about 1057.0033112531. The cubic root of 1117256 is about 103.7650019435.

The spelling of 1117256 in words is "one million, one hundred seventeen thousand, two hundred fifty-six".