1272495 has 16 divisors (see below), whose sum is σ = 2327040. Its totient is φ = 581664.

The previous prime is 1272461. The next prime is 1272539. The reversal of 1272495 is 5942721.

It is not a de Polignac number, because 1272495 - 2⁷ = 1272367 is a prime.

1272495 is a lucky number.

It is a plaindrome in base 16.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5955 + ... + 6164.

It is an arithmetic number, because the mean of its divisors is an integer number (145440).

2^1272495 is an apocalyptic number.

1272495 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1272495 is a deficient number, since it is larger than the sum of its proper divisors (1054545).

1272495 is a wasteful number, since it uses less digits than its factorization.

1272495 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12134.

The product of its digits is 5040, while the sum is 30.

The square root of 1272495 is about 1128.0492010546. The cubic root of 1272495 is about 108.3640833156.

The spelling of 1272495 in words is "one million, two hundred seventy-two thousand, four hundred ninety-five".