7151648 has 36 divisors (see below), whose sum is σ = 16382142. Its totient is φ = 3064320.

The previous prime is 7151623. The next prime is 7151653. The reversal of 7151648 is 8461517.

7151648 = T₃₃₇ + T₃₃₈ + ... + T₄₃₂.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 6492304 + 659344 = 2548^2 + 812^2 .

It is a super-2 number, since 2×7151648² = 102292138231808, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 713 + ... + 3848.

Almost surely, 2^7151648 is an apocalyptic number.

It is an amenable number.

7151648 is an abundant number, since it is smaller than the sum of its proper divisors (9230494).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7151648 is a wasteful number, since it uses less digits than its factorization.

7151648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4585 (or 4570 counting only the distinct ones).

The product of its digits is 6720, while the sum is 32.

The square root of 7151648 is about 2674.2565321973. The cubic root of 7151648 is about 192.6646525148.

The spelling of 7151648 in words is "seven million, one hundred fifty-one thousand, six hundred forty-eight".