7145816 has 8 divisors (see below), whose sum is σ = 13398420. Its totient is φ = 3572904.

The previous prime is 7145813. The next prime is 7145819. The reversal of 7145816 is 6185417.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (7145813) and next prime (7145819).

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7145813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 446606 + ... + 446621.

Almost surely, 2^7145816 is an apocalyptic number.

It is an amenable number.

7145816 is a deficient number, since it is larger than the sum of its proper divisors (6252604).

7145816 is a wasteful number, since it uses less digits than its factorization.

7145816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 893233 (or 893229 counting only the distinct ones).

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

The square root of 7145816 is about 2673.1659132946. The cubic root of 7145816 is about 192.6122671149.

The spelling of 7145816 in words is "seven million, one hundred forty-five thousand, eight hundred sixteen".