1351272 has 64 divisors (see below), whose sum is σ = 3749760. Its totient is φ = 403200.

The previous prime is 1351267. The next prime is 1351283. The reversal of 1351272 is 2721531.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18997 + ... + 19067.

It is an arithmetic number, because the mean of its divisors is an integer number (58590).

2^1351272 is an apocalyptic number.

1351272 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1351272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1874880).

1351272 is an abundant number, since it is smaller than the sum of its proper divisors (2398488).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1351272 is a wasteful number, since it uses less digits than its factorization.

With its successor (1351273) it forms a Ruth-Aaron pair, since the sum of their distinct prime factors is the same (150).

1351272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154 (or 150 counting only the distinct ones).

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

The square root of 1351272 is about 1162.4422566304. The cubic root of 1351272 is about 110.5556458263. Note that the first 3 decimals are identical.

The spelling of 1351272 in words is "one million, three hundred fifty-one thousand, two hundred seventy-two".