7148645 has 16 divisors (see below), whose sum is σ = 10143360. Its totient is φ = 4732224.

The previous prime is 7148633. The next prime is 7148657. The reversal of 7148645 is 5468417.

It is an interprime number because it is at equal distance from previous prime (7148633) and next prime (7148657).

It is not a de Polignac number, because 7148645 - 2⁴ = 7148629 is a prime.

It is a super-2 number, since 2×7148645² = 102206250672050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2507 + ... + 4536.

It is an arithmetic number, because the mean of its divisors is an integer number (633960).

Almost surely, 2^7148645 is an apocalyptic number.

It is an amenable number.

7148645 is a deficient number, since it is larger than the sum of its proper divisors (2994715).

7148645 is a wasteful number, since it uses less digits than its factorization.

7148645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7084.

The product of its digits is 26880, while the sum is 35.

The square root of 7148645 is about 2673.6950087847. The cubic root of 7148645 is about 192.6376819036.

The spelling of 7148645 in words is "seven million, one hundred forty-eight thousand, six hundred forty-five".