1200147 has 8 divisors (see below), whose sum is σ = 1723344. Its totient is φ = 738528.

The previous prime is 1200139. The next prime is 1200161. The reversal of 1200147 is 7410021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1200147 - 2³ = 1200139 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1200167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15348 + ... + 15425.

It is an arithmetic number, because the mean of its divisors is an integer number (215418).

2^1200147 is an apocalyptic number.

1200147 is a deficient number, since it is larger than the sum of its proper divisors (523197).

1200147 is a wasteful number, since it uses less digits than its factorization.

1200147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30789.

The product of its (nonzero) digits is 56, while the sum is 15.

The square root of 1200147 is about 1095.5122089689. The cubic root of 1200147 is about 106.2701959302.

Adding to 1200147 its reverse (7410021), we get a palindrome (8610168).

It can be divided in two parts, 120014 and 7, that added together give a palindrome (120021).

The spelling of 1200147 in words is "one million, two hundred thousand, one hundred forty-seven".