7149453 has 8 divisors (see below), whose sum is σ = 10034400. Its totient is φ = 4515408.

The previous prime is 7149449. The next prime is 7149463. The reversal of 7149453 is 3549417.

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

It is not a de Polignac number, because 7149453 - 2² = 7149449 is a prime.

It is a super-2 number, since 2×7149453² = 102229356398418, 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 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, 62658 + ... + 62771.

It is an arithmetic number, because the mean of its divisors is an integer number (1254300).

Almost surely, 2^7149453 is an apocalyptic number.

It is an amenable number.

7149453 is a deficient number, since it is larger than the sum of its proper divisors (2884947).

7149453 is a wasteful number, since it uses less digits than its factorization.

7149453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125451.

The product of its digits is 15120, while the sum is 33.

The square root of 7149453 is about 2673.8461062672. The cubic root of 7149453 is about 192.6449394740.

The spelling of 7149453 in words is "seven million, one hundred forty-nine thousand, four hundred fifty-three".