1265231 has 4 divisors (see below), whose sum is σ = 1380264. Its totient is φ = 1150200.

The previous prime is 1265197. The next prime is 1265233. The reversal of 1265231 is 1325621.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1325621 = 11 ⋅120511.

It is a cyclic number.

It is not a de Polignac number, because 1265231 - 2⁶ = 1265167 is a prime.

It is a super-2 number, since 2×1265231² = 3201618966722, which contains 22 as substring.

It is an Ulam 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 (1265233) 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, 57500 + ... + 57521.

It is an arithmetic number, because the mean of its divisors is an integer number (345066).

2^1265231 is an apocalyptic number.

1265231 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1265231 is a deficient number, since it is larger than the sum of its proper divisors (115033).

1265231 is a wasteful number, since it uses less digits than its factorization.

1265231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115032.

The product of its digits is 360, while the sum is 20.

The square root of 1265231 is about 1124.8248752584. The cubic root of 1265231 is about 108.1574919892.

The spelling of 1265231 in words is "one million, two hundred sixty-five thousand, two hundred thirty-one".