1272529 has 4 divisors (see below), whose sum is σ = 1275120. Its totient is φ = 1269940.

The previous prime is 1272461. The next prime is 1272539. The reversal of 1272529 is 9252721.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1272529 - 2¹³ = 1264337 is a prime.

It is a super-3 number, since 3×1272529³ = 6181933369887875667, which contains 333 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

1272529 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 1272497 and 1272506.

It is not an unprimeable number, because it can be changed into a prime (1272539) 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 3 ways as a sum of consecutive naturals, for example, 307 + ... + 1624.

It is an arithmetic number, because the mean of its divisors is an integer number (318780).

2^1272529 is an apocalyptic number.

It is an amenable number.

1272529 is a deficient number, since it is larger than the sum of its proper divisors (2591).

1272529 is an equidigital number, since it uses as much as digits as its factorization.

1272529 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2590.

The product of its digits is 2520, while the sum is 28.

The square root of 1272529 is about 1128.0642712186. The cubic root of 1272529 is about 108.3650484395.

The spelling of 1272529 in words is "one million, two hundred seventy-two thousand, five hundred twenty-nine".