7137145 has 8 divisors (see below), whose sum is σ = 8585856. Its totient is φ = 5695536.

The previous prime is 7137131. The next prime is 7137149. The reversal of 7137145 is 5417317.

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

It is a cyclic number.

It is not a de Polignac number, because 7137145 - 2¹⁹ = 6612857 is a prime.

It is a Duffinian number.

7137145 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (7137149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 774 + ... + 3856.

It is an arithmetic number, because the mean of its divisors is an integer number (1073232).

Almost surely, 2^7137145 is an apocalyptic number.

It is an amenable number.

7137145 is a deficient number, since it is larger than the sum of its proper divisors (1448711).

7137145 is a wasteful number, since it uses less digits than its factorization.

7137145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3551.

The product of its digits is 2940, while the sum is 28.

The square root of 7137145 is about 2671.5435613143. The cubic root of 7137145 is about 192.5343279422.

The spelling of 7137145 in words is "seven million, one hundred thirty-seven thousand, one hundred forty-five".