1147481 has 4 divisors (see below), whose sum is σ = 1178532. Its totient is φ = 1116432.

The previous prime is 1147463. The next prime is 1147499. The reversal of 1147481 is 1847411.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1847411 = 73 ⋅25307.

It is an interprime number because it is at equal distance from previous prime (1147463) and next prime (1147499).

It can be written as a sum of positive squares in 2 ways, for example, as 409600 + 737881 = 640^2 + 859^2 .

It is a cyclic number.

It is not a de Polignac number, because 1147481 - 2⁶ = 1147417 is a prime.

It is a super-2 number, since 2×1147481² = 2633425290722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1147481.

It is not an unprimeable number, because it can be changed into a prime (1147441) 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, 15470 + ... + 15543.

It is an arithmetic number, because the mean of its divisors is an integer number (294633).

2^1147481 is an apocalyptic number.

It is an amenable number.

1147481 is a deficient number, since it is larger than the sum of its proper divisors (31051).

1147481 is an equidigital number, since it uses as much as digits as its factorization.

1147481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31050.

The product of its digits is 896, while the sum is 26.

The square root of 1147481 is about 1071.2053958042. The cubic root of 1147481 is about 104.6924028743.

The spelling of 1147481 in words is "one million, one hundred forty-seven thousand, four hundred eighty-one".