7047149 has 4 divisors (see below), whose sum is σ = 7055580. Its totient is φ = 7038720.

The previous prime is 7047113. The next prime is 7047151. The reversal of 7047149 is 9417407.

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

It can be written as a sum of positive squares in 2 ways, for example, as 3960100 + 3087049 = 1990^2 + 1757^2 .

It is a cyclic number.

It is not a de Polignac number, because 7047149 - 2¹⁶ = 6981613 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7047169) 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, 2804 + ... + 4685.

It is an arithmetic number, because the mean of its divisors is an integer number (1763895).

Almost surely, 2^7047149 is an apocalyptic number.

It is an amenable number.

7047149 is a deficient number, since it is larger than the sum of its proper divisors (8431).

7047149 is an equidigital number, since it uses as much as digits as its factorization.

7047149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8430.

The product of its (nonzero) digits is 7056, while the sum is 32.

The square root of 7047149 is about 2654.6466808221. The cubic root of 7047149 is about 191.7216470711.

The spelling of 7047149 in words is "seven million, forty-seven thousand, one hundred forty-nine".