12272457 has 8 divisors (see below), whose sum is σ = 16607776. Its totient is φ = 8059392.

The previous prime is 12272441. The next prime is 12272483. The reversal of 12272457 is 75427221.

12272457 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 12272457 - 2⁴ = 12272441 is a prime.

It is a super-2 number, since 2×12272457² = 301226401633698, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12272437) 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, 30328 + ... + 30729.

It is an arithmetic number, because the mean of its divisors is an integer number (2075972).

Almost surely, 2^12272457 is an apocalyptic number.

It is an amenable number.

12272457 is a deficient number, since it is larger than the sum of its proper divisors (4335319).

12272457 is an equidigital number, since it uses as much as digits as its factorization.

12272457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61127.

The product of its digits is 7840, while the sum is 30.

The square root of 12272457 is about 3503.2066738918. The cubic root of 12272457 is about 230.6625946894.

Adding to 12272457 its reverse (75427221), we get a palindrome (87699678).

The spelling of 12272457 in words is "twelve million, two hundred seventy-two thousand, four hundred fifty-seven".