12272351 has 16 divisors (see below), whose sum is σ = 15994944. Its totient is φ = 9137664.

The previous prime is 12272341. The next prime is 12272357. The reversal of 12272351 is 15327221.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 12272351 - 2⁶ = 12272287 is a prime.

It is a super-2 number, since 2×12272351² = 301221198134402, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12272357) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2420 + ... + 5513.

It is an arithmetic number, because the mean of its divisors is an integer number (999684).

Almost surely, 2^12272351 is an apocalyptic number.

12272351 is a deficient number, since it is larger than the sum of its proper divisors (3722593).

12272351 is a wasteful number, since it uses less digits than its factorization.

12272351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7970.

The product of its digits is 840, while the sum is 23.

The square root of 12272351 is about 3503.1915448631. The cubic root of 12272351 is about 230.6619305924.

Adding to 12272351 its reverse (15327221), we get a palindrome (27599572).

The spelling of 12272351 in words is "twelve million, two hundred seventy-two thousand, three hundred fifty-one".