2187534 has 16 divisors (see below), whose sum is σ = 4390272. Its totient is φ = 726648.

The previous prime is 2187529. The next prime is 2187571. The reversal of 2187534 is 4357812.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2247 + ... + 3069.

It is an arithmetic number, because the mean of its divisors is an integer number (274392).

2^2187534 is an apocalyptic number.

2187534 is an abundant number, since it is smaller than the sum of its proper divisors (2202738).

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

2187534 is a wasteful number, since it uses less digits than its factorization.

2187534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1271.

The product of its digits is 6720, while the sum is 30.

The square root of 2187534 is about 1479.0314398281. The cubic root of 2187534 is about 129.8130250944.

The spelling of 2187534 in words is "two million, one hundred eighty-seven thousand, five hundred thirty-four".