7149812 has 6 divisors (see below), whose sum is σ = 12512178. Its totient is φ = 3574904.

The previous prime is 7149811. The next prime is 7149817. The reversal of 7149812 is 2189417.

It can be written as a sum of positive squares in only one way, i.e., 4857616 + 2292196 = 2204^2 + 1514^2 .

It is a super-2 number, since 2×7149812² = 102239623270688, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7149811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 893723 + ... + 893730.

It is an arithmetic number, because the mean of its divisors is an integer number (2085363).

Almost surely, 2^7149812 is an apocalyptic number.

It is an amenable number.

7149812 is a deficient number, since it is larger than the sum of its proper divisors (5362366).

7149812 is a wasteful number, since it uses less digits than its factorization.

7149812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1787457 (or 1787455 counting only the distinct ones).

The product of its digits is 4032, while the sum is 32.

The square root of 7149812 is about 2673.9132371863. The cubic root of 7149812 is about 192.6481638874.

The spelling of 7149812 in words is "seven million, one hundred forty-nine thousand, eight hundred twelve".