1115147 has 4 divisors (see below), whose sum is σ = 1216536. Its totient is φ = 1013760.

The previous prime is 1115131. The next prime is 1115189. The reversal of 1115147 is 7415111.

It is a happy number.

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

It is not a de Polignac number, because 1115147 - 2⁴ = 1115131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1115117) 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, 50678 + ... + 50699.

It is an arithmetic number, because the mean of its divisors is an integer number (304134).

2^1115147 is an apocalyptic number.

1115147 is a deficient number, since it is larger than the sum of its proper divisors (101389).

1115147 is a wasteful number, since it uses less digits than its factorization.

1115147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101388.

The product of its digits is 140, while the sum is 20.

The square root of 1115147 is about 1056.0052083205. The cubic root of 1115147 is about 103.6996697867.

The spelling of 1115147 in words is "one million, one hundred fifteen thousand, one hundred forty-seven".