7138145 has 8 divisors (see below), whose sum is σ = 9789504. Its totient is φ = 4894704.

The previous prime is 7138123. The next prime is 7138169. The reversal of 7138145 is 5418317.

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 7138145 - 2¹⁰ = 7137121 is a prime.

It is a super-2 number, since 2×7138145² = 101906228082050, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 101939 + ... + 102008.

It is an arithmetic number, because the mean of its divisors is an integer number (1223688).

Almost surely, 2^7138145 is an apocalyptic number.

It is an amenable number.

7138145 is a deficient number, since it is larger than the sum of its proper divisors (2651359).

7138145 is a wasteful number, since it uses less digits than its factorization.

7138145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203959.

The product of its digits is 3360, while the sum is 29.

The square root of 7138145 is about 2671.7307124783. The cubic root of 7138145 is about 192.5433196486.

The spelling of 7138145 in words is "seven million, one hundred thirty-eight thousand, one hundred forty-five".