7149405 has 16 divisors (see below), whose sum is σ = 11683584. Its totient is φ = 3731520.

The previous prime is 7149403. The next prime is 7149407. The reversal of 7149405 is 5049417.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (7149403) and next prime (7149407).

It is not a de Polignac number, because 7149405 - 2¹ = 7149403 is a prime.

It is a super-2 number, since 2×7149405² = 102227983708050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7149403) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4366 + ... + 5775.

It is an arithmetic number, because the mean of its divisors is an integer number (730224).

Almost surely, 2^7149405 is an apocalyptic number.

It is an amenable number.

7149405 is a deficient number, since it is larger than the sum of its proper divisors (4534179).

7149405 is a wasteful number, since it uses less digits than its factorization.

7149405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10196.

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 7149405 is about 2673.8371304176. The cubic root of 7149405 is about 192.6445083465.

The spelling of 7149405 in words is "seven million, one hundred forty-nine thousand, four hundred five".