7402165 has 4 divisors (see below), whose sum is σ = 8882604. Its totient is φ = 5921728.

The previous prime is 7402147. The next prime is 7402169. The reversal of 7402165 is 5612047.

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 2353156 + 5049009 = 1534^2 + 2247^2 .

It is a cyclic number.

It is not a de Polignac number, because 7402165 - 2⁷ = 7402037 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7402169) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 740212 + ... + 740221.

It is an arithmetic number, because the mean of its divisors is an integer number (2220651).

Almost surely, 2^7402165 is an apocalyptic number.

It is an amenable number.

7402165 is a deficient number, since it is larger than the sum of its proper divisors (1480439).

7402165 is a wasteful number, since it uses less digits than its factorization.

7402165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1480438.

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 7402165 is about 2720.6920075598. The cubic root of 7402165 is about 194.8885183512. Note that the first 3 decimals are identical.

The spelling of 7402165 in words is "seven million, four hundred two thousand, one hundred sixty-five".