2115524 has 6 divisors (see below), whose sum is σ = 3702174. Its totient is φ = 1057760.

The previous prime is 2115523. The next prime is 2115527. The reversal of 2115524 is 4255112.

It can be written as a sum of positive squares in only one way, i.e., 1716100 + 399424 = 1310^2 + 632^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2115496 and 2115505.

It is not an unprimeable number, because it can be changed into a prime (2115523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 264437 + ... + 264444.

It is an arithmetic number, because the mean of its divisors is an integer number (617029).

2^2115524 is an apocalyptic number.

It is an amenable number.

2115524 is a deficient number, since it is larger than the sum of its proper divisors (1586650).

2115524 is a wasteful number, since it uses less digits than its factorization.

2115524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 528885 (or 528883 counting only the distinct ones).

The product of its digits is 400, while the sum is 20.

The square root of 2115524 is about 1454.4841009788. The cubic root of 2115524 is about 128.3726930864.

The spelling of 2115524 in words is "two million, one hundred fifteen thousand, five hundred twenty-four".