1147320 has 48 divisors (see below), whose sum is σ = 3729960. Its totient is φ = 305856.

The previous prime is 1147301. The next prime is 1147331. The reversal of 1147320 is 237411.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1147293 and 1147302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1234 + ... + 1953.

2^1147320 is an apocalyptic number.

1147320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1147320 is an abundant number, since it is smaller than the sum of its proper divisors (2582640).

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

1147320 is a wasteful number, since it uses less digits than its factorization.

1147320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3204 (or 3197 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

The square root of 1147320 is about 1071.1302441814. The cubic root of 1147320 is about 104.6875062746.

Subtracting from 1147320 its reverse (237411), we obtain a palindrome (909909).

The spelling of 1147320 in words is "one million, one hundred forty-seven thousand, three hundred twenty".