2158548 has 36 divisors (see below), whose sum is σ = 5860512. Its totient is φ = 616560.

The previous prime is 2158547. The next prime is 2158549. The reversal of 2158548 is 8458512.

It is an interprime number because it is at equal distance from previous prime (2158547) and next prime (2158549).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2158547) 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, 1248 + ... + 2423.

It is an arithmetic number, because the mean of its divisors is an integer number (162792).

2^2158548 is an apocalyptic number.

2158548 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2158548 is an abundant number, since it is smaller than the sum of its proper divisors (3701964).

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

2158548 is a wasteful number, since it uses less digits than its factorization.

2158548 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3692 (or 3683 counting only the distinct ones).

The product of its digits is 12800, while the sum is 33.

The square root of 2158548 is about 1469.1997821944. The cubic root of 2158548 is about 129.2371097316.

It can be divided in two parts, 21585 and 48, that multiplied together give a triangular number (1036080 = T₁₄₃₉).

The spelling of 2158548 in words is "two million, one hundred fifty-eight thousand, five hundred forty-eight".