1299546 has 48 divisors (see below), whose sum is σ = 3047616. Its totient is φ = 399168.

The previous prime is 1299541. The next prime is 1299553. The reversal of 1299546 is 6459921.

It is a super-2 number, since 2×1299546² = 3377639612232, which contains 22 as substring.

It is an Ulam number.

Its product of digits (19440) is a multiple of the sum of its prime divisors (144).

It is a self number, because there is not a number n which added to its sum of digits gives 1299546.

It is not an unprimeable number, because it can be changed into a prime (1299541) 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 23 ways as a sum of consecutive naturals, for example, 17766 + ... + 17838.

It is an arithmetic number, because the mean of its divisors is an integer number (63492).

2^1299546 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1299546, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1523808).

1299546 is an abundant number, since it is smaller than the sum of its proper divisors (1748070).

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

1299546 is a wasteful number, since it uses less digits than its factorization.

1299546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147 (or 144 counting only the distinct ones).

The product of its digits is 19440, while the sum is 36.

The square root of 1299546 is about 1139.9763155434. The cubic root of 1299546 is about 109.1265818943.

It can be divided in two parts, 12995 and 46, that added together give a triangular number (13041 = T₁₆₁).

The spelling of 1299546 in words is "one million, two hundred ninety-nine thousand, five hundred forty-six".