1267530 has 64 divisors (see below), whose sum is σ = 3483648. Its totient is φ = 292160.

The previous prime is 1267529. The next prime is 1267531. The reversal of 1267530 is 357621.

It is an interprime number because it is at equal distance from previous prime (1267529) and next prime (1267531).

It is a self number, because there is not a number n which added to its sum of digits gives 1267530.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1267531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7507 + ... + 7673.

It is an arithmetic number, because the mean of its divisors is an integer number (54432).

2^1267530 is an apocalyptic number.

1267530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1267530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1741824).

1267530 is an abundant number, since it is smaller than the sum of its proper divisors (2216118).

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

1267530 is a wasteful number, since it uses less digits than its factorization.

1267530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211.

The product of its (nonzero) digits is 1260, while the sum is 24.

The square root of 1267530 is about 1125.8463483087. The cubic root of 1267530 is about 108.2229618835. Note that the first 3 decimals are identical.

Subtracting from 1267530 its reverse (357621), we obtain a palindrome (909909).

The spelling of 1267530 in words is "one million, two hundred sixty-seven thousand, five hundred thirty".