2152542 has 32 divisors (see below), whose sum is σ = 5018112. Its totient is φ = 602784.

The previous prime is 2152517. The next prime is 2152559. The reversal of 2152542 is 2452512.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1743 + ... + 2709.

It is an arithmetic number, because the mean of its divisors is an integer number (156816).

2^2152542 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2152542, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2509056).

2152542 is an abundant number, since it is smaller than the sum of its proper divisors (2865570).

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

2152542 is a wasteful number, since it uses less digits than its factorization.

2152542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1032.

The product of its digits is 800, while the sum is 21.

The square root of 2152542 is about 1467.1543886040. The cubic root of 2152542 is about 129.1171341585.

The spelling of 2152542 in words is "two million, one hundred fifty-two thousand, five hundred forty-two".