1272523 has 4 divisors (see below), whose sum is σ = 1454320. Its totient is φ = 1090728.

The previous prime is 1272461. The next prime is 1272539. The reversal of 1272523 is 3252721.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3252721 = 367 ⋅8863.

It is a cyclic number.

It is not a de Polignac number, because 1272523 - 2¹³ = 1264331 is a prime.

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

It is a junction number, because it is equal to n+sod(n) for n = 1272494 and 1272503.

It is not an unprimeable number, because it can be changed into a prime (1272223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 90888 + ... + 90901.

It is an arithmetic number, because the mean of its divisors is an integer number (363580).

2^1272523 is an apocalyptic number.

1272523 is a deficient number, since it is larger than the sum of its proper divisors (181797).

1272523 is an equidigital number, since it uses as much as digits as its factorization.

1272523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181796.

The product of its digits is 840, while the sum is 22.

The square root of 1272523 is about 1128.0616117925. The cubic root of 1272523 is about 108.3648781248.

The spelling of 1272523 in words is "one million, two hundred seventy-two thousand, five hundred twenty-three".