1249545 has 16 divisors (see below), whose sum is σ = 2181312. Its totient is φ = 605760.

The previous prime is 1249531. The next prime is 1249559. The reversal of 1249545 is 5459421.

It is an interprime number because it is at equal distance from previous prime (1249531) and next prime (1249559).

It is not a de Polignac number, because 1249545 - 2⁶ = 1249481 is a prime.

It is a super-2 number, since 2×1249545² = 3122725414050, which contains 22 as substring.

It is a plaindrome in base 13.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3622 + ... + 3951.

It is an arithmetic number, because the mean of its divisors is an integer number (136332).

2^1249545 is an apocalyptic number.

1249545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1249545 is a deficient number, since it is larger than the sum of its proper divisors (931767).

1249545 is a wasteful number, since it uses less digits than its factorization.

1249545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7592.

The product of its digits is 7200, while the sum is 30.

The square root of 1249545 is about 1117.8304880437. The cubic root of 1249545 is about 107.7086626783.

It can be divided in two parts, 124 and 9545, that added together give a palindrome (9669).

The spelling of 1249545 in words is "one million, two hundred forty-nine thousand, five hundred forty-five".