1248555 has 64 divisors (see below), whose sum is σ = 2654208. Its totient is φ = 485760.

The previous prime is 1248553. The next prime is 1248563. The reversal of 1248555 is 5558421.

It is not a de Polignac number, because 1248555 - 2¹ = 1248553 is a prime.

1248555 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1248551) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 26542 + ... + 26588.

It is an arithmetic number, because the mean of its divisors is an integer number (41472).

2^1248555 is an apocalyptic number.

1248555 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1248555 is an abundant number, since it is smaller than the sum of its proper divisors (1405653).

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

1248555 is a wasteful number, since it uses less digits than its factorization.

1248555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96.

The product of its digits is 8000, while the sum is 30.

The square root of 1248555 is about 1117.3875782377. The cubic root of 1248555 is about 107.6802097216.

It can be divided in two parts, 12 and 48555, that multiplied together give a triangular number (582660 = T₁₀₇₉).

The spelling of 1248555 in words is "one million, two hundred forty-eight thousand, five hundred fifty-five".