1272929 has 8 divisors (see below), whose sum is σ = 1488960. Its totient is φ = 1065456.

The previous prime is 1272919. The next prime is 1272937. The reversal of 1272929 is 9292721.

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

It is not a de Polignac number, because 1272929 - 2⁴ = 1272913 is a prime.

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

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1272895 and 1272904.

It is not an unprimeable number, because it can be changed into a prime (1272919) 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, 1814 + ... + 2415.

It is an arithmetic number, because the mean of its divisors is an integer number (186120).

2^1272929 is an apocalyptic number.

It is an amenable number.

1272929 is a deficient number, since it is larger than the sum of its proper divisors (216031).

1272929 is an equidigital number, since it uses as much as digits as its factorization.

1272929 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4279.

The product of its digits is 4536, while the sum is 32.

The square root of 1272929 is about 1128.2415521510. The cubic root of 1272929 is about 108.3764015478.

The spelling of 1272929 in words is "one million, two hundred seventy-two thousand, nine hundred twenty-nine".