1272351 has 4 divisors (see below), whose sum is σ = 1696472. Its totient is φ = 848232.

The previous prime is 1272347. The next prime is 1272361. The reversal of 1272351 is 1532721.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1532721 = 3 ⋅510907.

It is not a de Polignac number, because 1272351 - 2² = 1272347 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1272361) 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, 212056 + ... + 212061.

It is an arithmetic number, because the mean of its divisors is an integer number (424118).

2^1272351 is an apocalyptic number.

1272351 is a deficient number, since it is larger than the sum of its proper divisors (424121).

1272351 is an equidigital number, since it uses as much as digits as its factorization.

1272351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 424120.

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

The square root of 1272351 is about 1127.9853722456. The cubic root of 1272351 is about 108.3599955414.

The spelling of 1272351 in words is "one million, two hundred seventy-two thousand, three hundred fifty-one".