7256133 has 12 divisors (see below), whose sum is σ = 10653708. Its totient is φ = 4757760.

The previous prime is 7256113. The next prime is 7256141. The reversal of 7256133 is 3316527.

It is a happy number.

7256133 is a `hidden beast` number, since 72 + 561 + 33 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1292769 + 5963364 = 1137^2 + 2442^2 .

It is not a de Polignac number, because 7256133 - 2⁹ = 7255621 is a prime.

It is a super-2 number, since 2×7256133² = 105302932227378, which contains 22 as substring.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 7256097 and 7256106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7256113) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6060 + ... + 7157.

It is an arithmetic number, because the mean of its divisors is an integer number (887809).

Almost surely, 2^7256133 is an apocalyptic number.

It is an amenable number.

7256133 is a deficient number, since it is larger than the sum of its proper divisors (3397575).

7256133 is a wasteful number, since it uses less digits than its factorization.

7256133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13284 (or 13281 counting only the distinct ones).

The product of its digits is 3780, while the sum is 27.

The square root of 7256133 is about 2693.7210323268. The cubic root of 7256133 is about 193.5983915611.

The spelling of 7256133 in words is "seven million, two hundred fifty-six thousand, one hundred thirty-three".