5121756 has 18 divisors (see below), whose sum is σ = 12946752. Its totient is φ = 1707240.

The previous prime is 5121751. The next prime is 5121763. The reversal of 5121756 is 6571215.

5121756 is digitally balanced in base 4 and base 5, because in such bases it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (18).

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 an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5121751) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 71100 + ... + 71171.

It is an arithmetic number, because the mean of its divisors is an integer number (719264).

Almost surely, 2^5121756 is an apocalyptic number.

It is an amenable number.

5121756 is an abundant number, since it is smaller than the sum of its proper divisors (7824996).

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

5121756 is a wasteful number, since it uses less digits than its factorization.

5121756 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142281 (or 142276 counting only the distinct ones).

The product of its digits is 2100, while the sum is 27.

The square root of 5121756 is about 2263.1296913787. The cubic root of 5121756 is about 172.3744770510.

The spelling of 5121756 in words is "five million, one hundred twenty-one thousand, seven hundred fifty-six".