2148658 has 4 divisors (see below), whose sum is σ = 3222990. Its totient is φ = 1074328.

The previous prime is 2148649. The next prime is 2148659. The reversal of 2148658 is 8568412.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1361889 + 786769 = 1167^2 + 887^2 .

It is a d-powerful number, because it can be written as 2²¹ + 1 + 4⁶ + 8² + 6⁶ + 5⁴ + 8² .

It is not an unprimeable number, because it can be changed into a prime (2148659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 537163 + ... + 537166.

2^2148658 is an apocalyptic number.

2148658 is a deficient number, since it is larger than the sum of its proper divisors (1074332).

2148658 is a wasteful number, since it uses less digits than its factorization.

2148658 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1074331.

The product of its digits is 15360, while the sum is 34.

The square root of 2148658 is about 1465.8301402277. The cubic root of 2148658 is about 129.0394286862.

The spelling of 2148658 in words is "two million, one hundred forty-eight thousand, six hundred fifty-eight".