1272513 has 8 divisors (see below), whose sum is σ = 1850976. Its totient is φ = 771200.

The previous prime is 1272461. The next prime is 1272539. The reversal of 1272513 is 3152721.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1272513 - 2⁹ = 1272001 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1272513.

It is not an unprimeable number, because it can be changed into a prime (1272113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19248 + ... + 19313.

It is an arithmetic number, because the mean of its divisors is an integer number (231372).

2^1272513 is an apocalyptic number.

It is an amenable number.

1272513 is a deficient number, since it is larger than the sum of its proper divisors (578463).

1272513 is a wasteful number, since it uses less digits than its factorization.

1272513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38575.

The product of its digits is 420, while the sum is 21.

The square root of 1272513 is about 1128.0571794018. The cubic root of 1272513 is about 108.3645942657.

The spelling of 1272513 in words is "one million, two hundred seventy-two thousand, five hundred thirteen".